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    Home » Recipes » Brownies & Bars

    Blueberry Blondies

    Published: May 11, 2023 by brooke · This post may contain affiliate links · 2 Comments

    118 shares
    Jump to Recipe

    These quick and easy blueberry blondies are always a crowd pleaser. Chewy, fudgy and loaded with blueberries and topped with a brown sugar crumb top.

    Blueberry blondies cut and one pulled away from the rest.

    These blueberry blondies are my version of a blondie mixed with my blueberry coffee cake muffins. They're the perfect chewy texture with the yummiest crumb top that I can never get enough of.

    Baking with fresh fruit is always a good way to use up the fruit that is about to go bad. If you're looking for other ways to use up your fruit you should try my almond raspberry cake, strawberry cinnamon rolls, or white chocolate raspberry blondies.

    Jump to:
    • Why You Will Love These
    • Ingredient Notes
    • Step by Step Instructions
    • Expert Baking Tips
    • FAQ
    • Storing and Freezing
    • Other Popular Recipes
    • Blueberry Blondies

    Why You Will Love These

    • Quick & Easy: These can be made in one bowl, and baked in less than a half hour. No chilling required!
    • Full of Flavor: With blueberries in every bite and a sugary crumb top, every bite is exploding with flavor.
    • The Perfect Party Food: I always love bars for brunch's, parties and showers because you can make them ahead and they're easy to serve.

    Ingredient Notes

    Full ingredient measurements and instructions can be found in the recipe card below!

    • Butter: Allow the butter to come to room temperature after melting.
    • Eggs: You will use one whole egg and an egg yolk, if doubling this recipe just use 3 eggs.
    • Cornstarch: This is to keep the bars a little softer, if you don't have it just skip it.
    • Blueberries: I used fresh blueberries to make these.
    all the ingredients needed to make blueberry blondies.

    Step by Step Instructions

    Step 1: In a medium bowl, whisk together butter and brown sugar until combined. Add egg, yolk and vanilla and mix until combined.

    Step 2: Stir in cornstarch, baking powder, salt and flour. Then very carefully fold in blueberries.

    wet ingredients
    dry ingredients.
    blueberries added.

    Step 3: In a small bowl mix together brown sugar, flour, cinnamon and salt. Add diced butter and using a fork or fingers, work the butter into the dry mixture until it is crumbly and sand like.

    crumb top
    bars in the pan
    crumb top added to the blondies.

    Step 4: Pour into prepared baking pan and smooth with a spatula to make even for baking. Top with crumb topping.

    Step 5: Bake for 27-32 minutes or until golden brown all along the top, and edges pull away from the pan. Allow to cool before cutting. Dust with powdered sugar if desired.

    blueberry blondies done baking.
    blueberry blondies with powdered sugar sprinkled on top.

    Expert Baking Tips

    If using frozen blueberriess do not defrost before. Frozen will result in a slightly purple bar from the juice of the blueberries when baking.

    You can skip the crumb topping and add a glaze, or leave plain on top.

    I have given both cups and grams as measurements. Grams will be more precise, especially when measuring flour. If you don’t have a kitchen scale, no problem! Just lightly spoon flour into your measuring cup to insure its not packed in there. Light and fluffy is the key.

    FAQ

    What's the difference between a blondie and a brownie?

    Blondies, aka blonde brownies, are much like a chocolate brownie, but don't use any chocolate or cocoa powder. Using brown sugar and vanilla gives them a very rich vanilla flavor.

    Can blondies be made gluten free?

    Yes, just sub a gluten free flour in for both the blondies and the crumb top.

    Why did my blondies turn out more like cake?

    When too much flour is added to blondies they can turn out more like cake and less chewy. Make sure to weigh your flour, or sift before, if not using a scale. Over mixing the batter is another reason they turn too much like cake. Make sure to just mix until incorporated.

    blondies sitting in a pan with a cup of blueberries.

    Storing and Freezing

    These blueberry blondies can be stored in an air tight container for 3-4 days on the counter. Keep in mind that the crumb top will soften once covered tightly. They can also be kept in the fridge if you prefer to eat them cold.

    Blondies are perfect for freezing. If stored in an air tight container they will stay fresh for 3-4 months. Just allow to come to room temperature before eating.

    a side view of a blueberry blondie to see inside.

    Other Popular Recipes

    Biscoff Layer Cake

    Oreo Cinnamon Rolls

    Cinnamon Churro Cake

    For more yummy treats follow me on instagram @thesaltedsweets. And be sure to tag me and comment below if you make them and love them as much as I do. 

    Make sure to leave a star review below!

    Blueberry blondies cut and one pulled away from the rest.

    Blueberry Blondies

    brooke
    These quick and easy blueberry blondies are always a crowd pleaser. Chewy, fudgy and loaded with blueberries and topped with a brown sugar crumb top.
    5 from 11 votes
    Print Recipe Pin Recipe
    Prep Time 15 minutes mins
    Cook Time 27 minutes mins
    Total Time 42 minutes mins
    Course Dessert
    Cuisine American
    Servings 16
    Calories 188 kcal

    Ingredients
     
     

    • ½ cup butter melted and cooled
    • 1 cup brown sugar
    • 1 teaspoon vanilla
    • 1 large egg room temp
    • 1 large egg yolk room temp
    • 1¼ cups all-purpose flour
    • 1 teaspoon cornstarch
    • ½ teaspoon baking powder
    • ½ teaspoon salt
    • 1 cup blueberries washed and completely dry

    Crumb Top

    • 3 tablespoon brown sugar
    • ¼ cup all-purpose flour
    • ½ teaspoon cinnamon
    • pinch of salt
    • 3 tablespoon cold butter diced
    • powdered sugar for topping

    Instructions
     

    • Preheat oven to 350 F, and line a 8x8 baking pan with cooking spray and parchment paper.
    • In a medium bowl, whisk together butter and brown sugar until combined.
    • Add egg, yolk and vanilla and mix until combined.
    • Stir in cornstarch, baking powder, salt and flour. Then very carefully fold in blueberries.
    • In a small bowl mix together brown sugar, flour, cinnamon and salt. Add diced butter and using a fork or fingers, work the butter into the dry mixture until it is crumbly and sand like.
    • Pour into prepared baking pan and smooth with a spatula to make even for baking. Top with crumb topping.
    • Bake for 27-32 minutes or until golden brown all along the top, and edges pull away from the pan. Allow to cool before cutting. Dust with powdered sugar if desired.

    Notes

    If using frozen blueberriess do not defrost before. Frozen will result in a slightly purple bar from the juice of the blueberries when baking.
    I have given both cups and grams as measurements. Grams will be more precise, especially when measuring flour. If you don’t have a kitchen scale, no problem! Just lightly spoon flour into your measuring cup to insure its not packed in there. Light and fluffy is the key.

    Nutrition

    Serving: 1squareCalories: 188kcalCarbohydrates: 26gProtein: 2gFat: 9gSaturated Fat: 5gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 2gTrans Fat: 0.3gCholesterol: 44mgSodium: 158mgPotassium: 49mgFiber: 1gSugar: 17gVitamin A: 280IUVitamin C: 1mgCalcium: 29mgIron: 1mg
    Keyword blondies, blueberry blondies, blueberry crumb bars
    Tried this recipe?Let us know how it was!

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    Reader Interactions

    Comments

    1. Emily Thomas

      May 16, 2023 at 7:47 pm

      5 stars
      So good! I added some white chocolate chips!

      Reply
      • brooke

        May 16, 2023 at 8:52 pm

        Yay! Thank you. Sounds wonderful with the white chocolate also!

        Reply

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