Amazing 1st Lemon Blueberry Gluten-Free Bars

Oh my gosh, I am so excited to share this recipe with you because sometimes, you just need something bright, tangy, and perfectly balanced to lift your day! When I’m focused on nourishing my body but still craving a treat—especially when those gorgeous blueberries hit the market—I turn right to these Lemon Blueberry Gluten-Free Bars. Seriously, these are my go-to for an easy, yet elegant, dessert.

It’s all about combining that buttery, tender shortbread base with a burst of sunny lemon and sweet fruit filling. As a recipe developer always aiming for wellness, I’ve made sure this version is completely accessible—gluten-free, of course—but tastes like it came from a fancy bakery. It proves that healthy baking doesn’t mean sacrificing sheer deliciousness. Grab your mixer; we’re making something amazing!

A close-up of a square Lemon Blueberry Gluten-Free Bars showing the crumbly base, thick berry filling, and white glaze.

Why You Need These Lemon Blueberry Gluten-Free Bars

Honestly, these bars have earned permanent residency in my recipe rotation, and I think they’re about to earn a spot in yours too! Why? Because they hit that sweet spot between indulgence and everyday eating. They aren’t heavy; they’re simply bright and satisfying.

If you’re looking for the best gluten-free desserts that actually taste incredible, this is it. They truly stand out:

  • The flavor is pure sunshine! That hit of fresh lemon zest against the sweet blueberries is just unbeatable.
  • They are so easy to pull together for a last-minute gathering, or just for an afternoon snack for the family.
  • Since they’re baked in a pan, cleanup is minimal—less stress for us busy cooks!
  • They fit perfectly into a wellness routine because they are light, satisfy that sweet tooth, and are naturally gluten-free. You can feel good about grabbing one of these Lemon Blueberry Gluten-Free Bars.

Essential Ingredients for Perfect Lemon Blueberry Gluten-Free Bars

Okay, you know I love keeping things simple, but for these Lemon Blueberry Gluten-Free Bars to sing, we need the right supporting cast! When it comes to the ingredients, organization is key. I divide everything into three groups: the buttery base, the bright blue filling, and the tiny finishing drizzle of glaze. Don’t fret about the flour; almost any good 1:1 gluten-free blend works wonders here!

I always make sure my butter is perfectly room temperature, which is crucial for that fluffy texture we talked about. Also, if you keep an eye out for seasonal blueberries, the fresh flavor in your bars is just unmatched. If you’re looking for a little extra zest in your life, check out how I use lemon in my reset lemonade—it’s that kind of bright flavor we are aiming for here.

For the Shortbread Base

  • 3/4 cup (150g) granulated sugar
  • 2 tablespoons lemon zest (make sure you get all those lovely oils!)
  • 1 cup (227g) salted butter, room temperature (totally fine to use your favorite plant-based butter here!)
  • 1 teaspoon vanilla extract
  • 2 1/3 cup (280g) gluten-free flour 1:1 baking blend
  • 1/2 teaspoon fine sea salt

For the Blueberry Filling

This is where the magic thickens up nicely, thanks to a secret weapon!

  • 3 cups (444g) beautiful blueberries (fresh or frozen works, just don’t thaw them!)
  • 2 tablespoons (30ml) fresh lemon juice
  • 1/4 cup (50g) granulated sugar
  • 1 tablespoon (8g) cornstarch (This is essential to keep the filling from becoming too runny!)

For the Lemon Glaze

This is just a tiny touch of sweetness to top everything off once it’s cooled! It’s so easy, you won’t even believe it.

  • 1/4 cup (30g) powdered sugar
  • 1/2 tablespoon fresh lemon juice (just enough to make it pourable)

Expert Tips for Making Your Lemon Blueberry Gluten-Free Bars

Listen, baking gluten-free can sometimes feel like walking a tightrope, right? But these bars are super forgiving if you follow a couple of little things I learned early on. Trust me, these small steps are what separate a good snack bar from an absolutely crave-worthy dessert. We really want to nail that perfectly tender base for our beautiful Lemon Blueberry Gluten-Free Bars.

The most important thing, which I can’t stress enough, is patience at the end. Don’t even *think* about drizzling that lovely glaze on while these babies are warm! They need to cool completely, or you’re just asking for a melted, sad mess instead of those pretty sharp squares.

Achieving the Perfect Shortbread Texture

This part is all about restraint. Once you add that gluten-free flour blend and salt into the creamy butter mixture, you need to mix it minimally. I mean it! Don’t let the mixer run on high. As soon as you see it just come together into those lovely, crumbly clumps—stop! Overmixing the gluten-free flour develops a tougher texture, and we want these bars to melt in your mouth, not require serious chewing power.

If you press the base into the pan too hard, it can also get dense. Just use your fingers or the bottom of a measuring cup and press firmly enough so it holds together, but don’t compact it like concrete. A little bit of airiness helps the shortbread stay tender.

Handling the Blueberry Filling

This is my number one secret for avoiding a soggy bottom crust, which is the kryptonite of all fruit bars! When you toss your blueberries with the sugar, lemon juice, and cornstarch, the berries are going to start weeping almost immediately. That’s totally normal, but you don’t want all that extra juice soaking into your shortbread base before it even sees the oven.

So, after you gently mix the filling ingredients, let it sit for maybe five minutes. You’ll notice some liquid pooling at the bottom of the bowl. When you spoon the filling onto your base, scoop out just the berries and leave as much of that watery liquid behind in the bowl as you possibly can! That little bit of cornstarch will thicken up the residual juice during baking without drowning your crust. A light hand here makes a huge difference!

Step-by-Step Instructions to Prepare Lemon Blueberry Gluten-Free Bars

Are you ready to mix? This is the fun part! While these Lemon Blueberry Gluten-Free Bars look fancy, the assembly is incredibly straightforward. Just follow along and remember that everything hinges on what we do first with that buttery texture.

Preparing the Base Dough

First things first, let’s get the oven ready! You want to preheat it to 350ºF. While that’s warming up, grab your 8×8-inch baking pan. I swear by lining it with two sheets of parchment paper crisscrossed—this creates little handles later so you can lift the whole block out in one piece. Trust me, this saves so much heartache during the cooling stage!

Now for the mixer. We start by creaming the sugar and lemon zest together for just about a minute. This wakes up those oils in the zest! Next, beat in your room-temperature butter and vanilla until the whole mixture looks pale and super fluffy—that takes a good 2 to 3 minutes on high. Once that’s done, switch the mixer to low speed. Slowly mix in your 2 1/3 cups of gluten-free flour blend and the salt. You mix only until it *just* turns into a crumbly, shaggy dough. Stop right there, we don’t want to overwork this part!

Assembling and Baking the Bars

Take about two-thirds of that lovely crumbly dough and carefully press it into the bottom of your prepared pan. Make sure the bottom layer is even; there is no room for error here since this is our foundation! Now, set that aside while we tackle the fruit.

In a separate bowl, gently toss together your blueberries, the remaining 1/4 cup of sugar, the lemon juice, and the cornstarch. Remember what I said about leaving the excess liquid behind? Spoon the blueberry mixture right over that pressed shortbread base and spread it out as best you can. Take that final third of the dough and just crumble it right over the top of the blueberries. It doesn’t need to cover everything perfectly—that scattered look is beautiful!

A close-up of a single serving of Lemon Blueberry Gluten-Free Bars with a thick berry layer and white icing drizzle.

Slide that pan into your preheated oven. You’ll bake these for approximately 60 minutes. Keep an eye on it; you want the topping to look lightly golden brown. When it’s done, pull it out and the hardest part begins: lettt it cool completely right there in the pan. Don’t rush this cooling process; it needs time to set before we add the finish!

Finishing with the Lemon Drizzle

Once the bars are stone cold—and I mean totally cool, usually an hour or two on the counter—it’s time to make the simple glaze. You just whisk the powdered sugar and the last bit of lemon juice together until you get something smooth and drizzle-able. It should be thick enough to sit on top but thin enough to flow off your spoon.

Drizzle that shining glaze all over the cooled bars. Let that drizzle set for about 15 minutes, and then use those parchment paper handles to lift the whole block out. Now you can slice them cleanly into squares, and voilà! You have the most amazing snack bars ready to go.

Two stacked squares of Lemon Blueberry Gluten-Free Bars showing the thick blueberry filling and crumb topping with white glaze.

Ingredient Notes and Substitutions for Your Lemon Blueberry Gluten-Free Bars

So, you might be wondering about tweaking things, especially when it comes to specialized ingredients like gluten-free flour or butter alternatives. That’s perfectly okay! My goal is always to make these recipes work for your lifestyle, whether you need Dairy Free Recipes Dessert options or specific gluten-free flours. Getting these substitutions right prevents weird textures in your delightful Lemon Blueberry Gluten-Free Bars.

The beauty of baking is seeing how different ingredients interact, but for this specific shortbread base, we have to be a little careful. We want tenderness, not grit or crumbling!

Gluten-Free Flour Blend Guidance

When you’re grabbing your gluten-free 1:1 blend off the shelf, give the package a little look-over. For a shortbread-style base like this one, you absolutely need a blend that already includes xanthan gum. Xanthan gum is the magic ticket here; it acts as the binder that traditional flour provides, keeping those crumbs from turning into actual sand!

If your blend does *not* have it listed, don’t panic! Just add about 3/4 teaspoon of pure xanthan gum along with the dry ingredients. This ensures your base holds together beautifully when you press it into the pan and when you try to lift those finished squares out. It makes all the difference in the final texture.

Dairy-Free Butter Options

Since we’re keeping things light and often dairy-free, the butter choice matters more than you think! You can definitely use a plant-based butter, and it will work beautifully in these Easy Dairy Free Dessert bars.

Here’s the critical part: use stick butter, not the soft spreadable kind that comes in a tub. Why? Because tub butter has too much water content, which messes up the ratio we worked so hard to balance when creaming it with the sugar and zest. Look for high-quality dairy-free butter sticks that are made primarily from oils. Brands that mimic traditional butter’s fat content are wonderful because they cream up light and fluffy, promising that tender, melt-in-your-mouth shortbread texture without any dairy.

Storage and Make-Ahead Tips for Lemon Blueberry Gluten-Free Bars

Good news! These bars are fantastic for when you want to prep ahead, which, let’s be real, is almost always the goal when baking anything delicious. Knowing you have a beautiful, bright snack waiting for you is the best feeling, right? That’s why I always make a double batch of these Lemon Blueberry Gluten-Free Bars when I have time.

The best way to store them depends on how quickly you plan to eat them. If you’re serving them throughout the week, the fridge is your friend. If you want to bake them for a future event, feel free to freeze them—they hold up wonderfully!

Remember, the glaze is applied only after they’ve cooled completely, so if you are planning on freezing them, you have two options for glazing:

  1. Glaze Before Freezing: Cover each square individually with plastic wrap or wax paper before placing them in the freezer container. This is quicker for serving later, but the glaze can sometimes stick a tiny bit when thawing.
  2. Glaze After Thawing: Store the unglazed bars tightly wrapped. When you plan to serve them, let them thaw overnight in the fridge, and then whip up a quick batch of glaze in the morning! I generally prefer this method for the best long-term look.

Whether they are going into the fridge or the freezer, make sure they are cut into squares *before* storage. Trying to cut them after they’ve been chilled or frozen solid is a battle you don’t need to fight! Storing them in an airtight container keeps that shortbread base from absorbing any weird fridge smells and keeps them fresh for up to five days.

Serving Suggestions for These Simple Gluten-Free Desserts

Now that you’ve got these gorgeous, bright bars cooling and ready to be sliced, the fun part begins: how do we serve them? These aren’t just for after dinner; they are great for brunch, an afternoon coffee break, or even packing in a lunch box for a little pick-me-up. Because they are so light and fruit-forward, they pair wonderfully with creamy, rich accents.

For the ultimate treat, I always suggest serving them slightly chilled—that glaze stays beautifully firm! They really shine as one of those Gluten Free Dessert Ideas that doesn’t feel heavy after a big meal. Here are a few ways I love to dress them up:

  • A Scoop of Vanilla: A small scoop of high-quality vanilla bean ice cream—or even a dairy-free coconut yogurt—meets the tartness of the lemon perfectly. The temperature contrast is just divine.
  • Whipped Cream Delight: If you’re feeling fancy, a dollop of freshly whipped cream, maybe scented with just a tiny bit of extra vanilla, makes these instantly dessert-worthy.
  • Pair it with Refreshment: Since my focus is always on balance, these bars taste amazing alongside something cool and slightly bubbly. If you’re looking for a grown-up pairing, you absolutely must try these with a pink coconut mojito! The sweet citrus notes blend so well with the blueberries.
  • Morning Munchies: Seriously, these are my favorite way to start a slow weekend morning! Skip the glaze if you’re eating them for breakfast and just enjoy them alongside your coffee—they make a lovely alternative to a scone or muffin.

Two stacked Lemon Blueberry Gluten-Free Bars with a thick berry filling and white glaze drizzled on top.

They are so colorful and transportable that they are an instant hit at potlucks or community gatherings. It’s just such an easy way to bring a beautiful, naturally compliant dessert that everyone, gluten-free or not, will reach for first!

Frequently Asked Questions About Our Lemon Blueberry Gluten-Free Bars

I totally get it; when you’re baking with specific dietary needs in mind, you want to make sure everything lines up perfectly before you even turn the oven on. Baking gluten free easy desserts shouldn’t feel like a trial run! I’ve gathered up the most common questions I get about these bright, tangy bars. Hopefully, this helps you feel super confident before you start mixing!

Can I make these Lemon Blueberry Gluten-Free Bars refined sugar free?

That’s a super common question, especially when we’re aiming for refined sugar free desserts! The short answer is yes, you absolutely can make adjustments, but you have to be mindful of texture. Since this recipe relies on granulated sugar for texture (it creams with the butter to create those vital air pockets), swapping it out means the base might change slightly.

If you switch to a zero-calorie sweetener like monk fruit or erythritol, I recommend using a blend that measures cup-for-cup like sugar. You might notice the bars are a little less golden or slightly more crumbly, so make sure you press that base down really well! For the filling, you can often swap sugar for a liquid sweetener like maple syrup, but you’ll need to cut back on the lemon juice slightly, or add an extra pinch of cornstarch to maintain thickness.

Are these bars suitable for non-dairy diets?

Yes, they are! This recipe was designed specifically to work beautifully as one of those non dairy desserts that doesn’t taste like a substitution. As I mentioned earlier, you can use your favorite plant-based butter sticks instead of traditional salted butter.

I’ve tested it successfully with vegan butter sticks that have a higher fat content—I look for ones that say they can be used for baking. Avoid the tubs of soft spreads; you need that firm structure for creaming! When you use a good quality vegan butter, the result is wonderfully rich and creamy, making these perfect dairy free recipes dessert options for everyone.

How do I prevent the blueberries from sinking?

Oh, the dreaded fruit sinkage! It happens when the fruit is too heavy or wet compared to the batter holding it up. The good news is that this recipe takes preventative measures to stop that! The key here is definitely the cornstarch you mix in with the blueberries, lemon juice, and sugar.

The cornstarch is essential because it absorbs some of the moisture released by the berries while they bake, turning that liquid into a light, slightly jammy sauce that stays suspended *within* the filling layer. Secondly, just remember my tip from before about leaving excess liquid behind when you transfer the fruit onto the base. If you toss the berries and leave the watery residue in the bowl, your shortbread base stays firm and happy to hold up that fruit layer all the way through baking!

If you’re curious about other ways to make healthy swaps, you can check out some of my thoughts on low-calorie recipe modifications on the blog!

Nutritional Snapshot of Lemon Blueberry Gluten-Free Bars

I always feel so much better enjoying a treat when I know roughly what’s in it! Knowing these Lemon Blueberry Gluten-Free Bars clock in at around 250 calories per serving really helps keep things balanced. Just remember, these numbers are estimates based on the ingredients listed. We’re aiming for deliciousness that supports your wellness journey, and these bars fit the bill perfectly. For more ideas on fueling your body right, you can check out my favorite healthy recipes!

Here’s a quick look at what you can expect per bar:

  • Calories: Approx. 250
  • Fat: 14g
  • Carbohydrates: 32g
  • Sugar: 20g
  • Protein: 2g
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A close-up of a single serving of Lemon Blueberry Gluten-Free Bars, showing the thick blueberry filling and crumb topping with white glaze.

Lemon Blueberry Gluten-Free Bars 250 Cal


  • Author: Emma
  • Total Time: 80 min
  • Yield: 16 servings 1x
  • Diet: Gluten Free

Description

Make simple, fresh lemon blueberry gluten-free bars with a buttery shortbread base and a bright fruit filling.


Ingredients

Scale
  • 3/4 cup (150g) granulated sugar
  • 2 tablespoons lemon zest
  • 1 cup (227g) salted butter, room temperature (regular or plant-based)
  • 1 teaspoon vanilla
  • 2 1/3 cup (280g) gluten-free flour 1:1 baking blend
  • 1/2 teaspoon fine sea salt
  • 3 cups (444g) blueberries
  • 2 tablespoons (30ml) lemon juice
  • 1/4 cup (50g) granulated sugar
  • 1 tablespoon (8g) cornstarch
  • 1/4 cup (30g) powdered sugar
  • 1/2 tablespoon lemon juice

Instructions

  1. Preheat the oven to 350ºF and prepare an 8×8-inch baking pan with non-stick baking spray and two pieces of parchment paper crisscrossed.
  2. In a stand mixer or large mixing bowl with an electric mixer, beat the sugar and lemon zest on high speed for 1 minute.
  3. Add the butter and vanilla and beat together on high for 2-3 minutes until light and fluffy.
  4. Add the flour and salt and mix on low until a crumbly dough forms.
  5. Place ⅔ of the dough into the prepared pan and press down evenly. Set aside.
  6. In a small mixing bowl, combine the blueberries, sugar, lemon juice, and cornstarch and gently toss together.
  7. Spoon the blueberry mixture on top of the shortbread base and spread evenly, leaving excess liquid in the bowl.
  8. Crumble the remaining dough over the blueberries and bake for approximately 60 minutes or until lightly golden on top.
  9. Remove from the oven and allow to cool fully in the pan.
  10. In a small mixing bowl, add the powdered sugar and lemon juice and mix until combined and smooth.
  11. Top the cooled lemon blueberry bars with a drizzle of lemon glaze and slice into squares.

Notes

  • Store leftover lemon blueberry bars in an airtight container in the refrigerator for up to 5 days.
  • You can freeze the bars in an airtight container for up to 3 months.
  • Prep Time: 20 min
  • Cook Time: 60 min
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 bar
  • Calories: 250
  • Sugar: 20g
  • Sodium: 150mg
  • Fat: 14g
  • Saturated Fat: 9g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 32g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 35mg

Keywords: Lemon Blueberry Bars, Gluten Free, Refined Sugar Free, Dairy Free, Easy Dessert, Healthy Snack Bars, Gluten Free Baking

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