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Blueberry Lemon Blondies

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close up shot of brownies stacked on top of each other
Packed with plump blueberries and tangy lemon flavor, these blueberry lemon blondies will be a winner with any fan of lemon desserts. 
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Table of Contents
  1. Blueberry Lemon Blondies Ingredients
  2. How to Make This Blueberry Lemon Blondies Recipe
  3. How To Serve
  4. Storage
  5. More Recipes You’ll Love
  6. JUMP TO RECIPE

These blueberry lemon blondies are light, fluffy, and bursting with juicy blueberries and bright lemon flavor. The divine bars feature an amazing combination of buttery, crisp edges and a soft, thick center drizzled with a dreamy simple lemon glaze. 

Two more blondie recipes you must try are our strawberry lemon blondies and original blondies recipe that is loaded with plenty of chocolate chips. 

close up shot of brownies stacked on top of each other

Blueberry Lemon Blondies Ingredients

Blueberry Lemon Blondies raw ingredients that are labeled

 You’ll need: 

  • 2 large eggs
  • 1½ cups granulated sugar
  • 1 cup salted butter, melted
  • ¼ cup fresh lemon juice
  • Zest of 1 lemon (about 1 teaspoon)
  • 1 teaspoon vanilla extract
  • 1 teaspoon lemon extract or 3 to 4 drops of lemon oil
  • 2¼ cups all-purpose flour
  • 1½ teaspoons baking powder
  • 1½ cups fresh blueberries

PRO TIP:

Lemon oil adds amazing lemon flavor with just a couple of drops. Use lemon oil instead of lemon extract if you have it available.

For the Glaze

  • ½ cup blueberries
  • ½ cup granulated sugar
  • ½ cup powdered sugar
  • 1 to 2 tablespoons heavy cream or milk

SUBSTITUTIONS AND ADDITIONS

BLUEBERRIES: You can use frozen blueberries instead of fresh blueberries in this recipe. 

NUTS: Add chopped walnuts or other chopped nuts to these lemon bars for a bit of extra crunch. 

TOPPING: For a different spin on the topping for this blueberry dessert, try lemon curd or lemon buttercream for added fresh flavor instead of your glaze. 

CHOCOLATE CHIPS: For a burst of sweetness, mix white chocolate chips or even milk chocolate chips into the batter. 

How to Make This Blueberry Lemon Blondies Recipe

STEP ONE: Preheat the oven to 350°F. Line a 9×13-inch glass baking dish with parchment paper and set it aside. 

STEP TWO: In a stand mixer or with a hand mixer, whisk the eggs on high until very frothy. 

OUR RECIPE DEVELOPER SAYS

Whipping the eggs ahead of time gives a nice lift to the blondie batter while keeping them nice and buttery texture.

eggs placed in a measuring cup

STEP THREE: Add in 1½ cups granulated sugar and continue whisking with the electric mixer at high speed until foamy and thickened. 

sugar added to the measuring cup of ingredients

STEP FOUR: Add the melted butter, lemon juice, lemon zest, vanilla extract, and lemon oil/extract to the egg mixture. Beat on medium speed until combined. 

ingredients added to the measuring cup of ingredients

STEP FIVE: In a separate bowl, combine flour and baking powder. 

PRO TIP:

If you like a fluffier center, you can increase the flour by a ¼ to ½ cup.

STEP SIX: Add the flour mixture to the wet ingredients and mix just until combined. 

flour mixture added to the wet mixture

PRO TIP:

Do not overmix your batter, or you may end up with crumbly bars.

STEP SEVEN: Gently fold in blueberries, just until combined. 

blueberries folded into the measuring cup of batter

STEP EIGHT: Spread the mixture into the prepared pan. 

STEP NINE: Bake blondies for 30 minutes or until a toothpick inserted in the center comes out clean. 

batter placed into a baking dish

STEP TEN: To make the glaze, heat ½ cup of blueberries and ½ cup of sugar in a small saucepan over medium heat. You can add a splash of water (1 tablespoon) to help the mixture. Heat, stirring constantly until sugar is dissolved and blueberries have formed a vibrant syrup. 

PRO TIP:

blueberries and sugar being cooked in a pan

STEP ELEVEN: Stir the syrup through a sieve into a bowl with ½ cup of powdered sugar. Whisk until combined, adding a splash of heavy cream or milk to help smooth the glaze into a spreadable consistency. 

ingredients whisked together in a bowl

STEP TWELVE: Spread glaze over warm baked blondies and allow them to cool the rest of the way. 

STEP THIRTEEN: Cut into squares and serve.

How To Serve

 Your delicious blondies will make for an easy dessert. If you are looking for something even more indulgent, add a scoop of vanilla ice cream, a dollop of whipped cream, and fresh berries to your plate, along with your blondie. 

Storage

ON THE COUNTER: Lemon blueberry blondies can be left out at room temperature. To keep them fresh, wrap tightly in plastic wrap, foil, or store in an airtight container. Stored this way, they should stay fresh for about 3 days. 

Uncut blondies will stay fresher for longer than individually cut blondies, so if making ahead, wait until the day you are serving them to cut into portions. 

IN THE FRIDGE: If you want to keep these lemon blueberry blondie bars for longer, this easy blondie recipe can be stored in the fridge for a week. Wrap the blondie bars tightly with plastic wrap to keep the air from getting in and drying them out. 

IN THE FREEZER: Store these delicious lemon blueberry blondies in the freezer for up to 3 months. Thaw on the counter when you are ready to serve them.

overhead shot of brownies cut on a wooden board

The bursts of sweet blueberries are perfectly complemented by the tangy lemon flavor in these blueberry blondies, and the sweet glaze is a decadent finish to an already fantastic dessert.

FREQUENTLY ASKED QUESTIONS

Do I have to use fresh lemon juice in this recipe?

We highly recommend freshly squeezed lemon juice in this lemon blondie recipe instead of bottled. Fresh juice will give you a much better lemony flavor, and since you already have the fresh lemons for the zest, you have your fresh juice right in your hand! 

Can I freeze blondies?

Lemon & blueberry blondies can be frozen stored in an airtight container in the freezer for up to three months. 

Can I use frozen blueberries in this recipe?

Frozen or fresh blueberries are both delicious in this blueberry lemon blondies dessert bars recipe.

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Blueberry Lemon Blondies

5 from 1 vote
Packed with plump blueberries and tangy lemon flavor, these blueberry lemon blondies will be a winner with any fan of lemon desserts. 
Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings 16

Ingredients
  

  • 2 large eggs
  • cups granulated sugar
  • 1 cup salted butter, melted
  • ¼ cup fresh lemon juice
  • 1 Zest lemon, about 1 teaspoon
  • 1 teaspoon vanilla extract
  • 1 teaspoon lemon extract or 3 to 4 drops of lemon oil
  • cups all-purpose flour
  • teaspoons baking powder
  • cups fresh blueberries

Glaze

  • ½ cup blueberries
  • ½ cup granulated sugar
  • ½ cup powdered sugar
  • 1 to 2 tablespoons heavy cream or milk

Instructions
 

  • Preheat the oven to 350°F. Line a 9×13 glass baking dish with parchment paper and set it aside.
  • In a stand mixer or with a hand mixer, whisk the eggs on high until very frothy.
  • Add in 1½ cups granulated sugar and continue whisking at high speed until foamy and thickened.
  • Add melted butter, lemon juice, lemon zest, vanilla extract, and lemon oil/extract. Beat on medium speed until combined.
  • In a separate bowl, combine flour and baking powder.
  • Add the flour mixture to the wet mixture and mix just until combined.
  • Gently fold in blueberries, just until combined.
  • Spread the mixture into the prepared baking dish.
  • Bake blondies for 30 minutes or until a toothpick inserted in the center comes out clean.
  • To make the glaze, heat ½ cup of blueberries and ½ cup of sugar in a small saucepan over medium heat. You can add a splash of water (1 tablespoon) to help the mixture. Heat, stirring constantly until sugar is dissolved and blueberries have formed a vibrant syrup.
  • Stir the syrup through a sieve into a bowl with ½ cup of powdered sugar. Whisk until combined, adding a splash of heavy cream or milk to help smooth the glaze into a spreadable consistency.
  • Spread glaze over warm blondies and allow them to cool the rest of the way.
  • Cut into squares and serve.

Notes

  • Lemon oil adds amazing lemon flavor with just a couple of drops. Use lemon oil instead of lemon extract if you have it available.
  • Whipping the eggs ahead of time gives a nice lift to the blondie batter while keeping them nice and buttery texture.
  • If you like a fluffier center, you can increase the flour by a ¼ to ½ cup.
  • Do not overmix your batter, or you may end up with crumbly bars.
  • You can make a lemon-flavored glaze instead of the blueberry glaze. Just whisk together powdered sugar, a couple of drops of lemon oil, and cream until the glaze is spreadable. You can add purple, blue, or even yellow food coloring if you like.

Nutrition

Sodium: 112mg | Calcium: 29mg | Vitamin C: 4mg | Vitamin A: 412IU | Sugar: 31g | Fiber: 1g | Potassium: 89mg | Cholesterol: 55mg | Calories: 302kcal | Trans Fat: 1g | Monounsaturated Fat: 3g | Polyunsaturated Fat: 1g | Saturated Fat: 8g | Fat: 13g | Protein: 3g | Carbohydrates: 45g | Iron: 1mg
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