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Blueberry Blondies

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Prep Time: 10 minutes     Cook Time: 30 minutes

5 from 7 votes

Fresh blueberries are the star of this blueberry blondies recipe and are always great in blondie recipes. These blueberry blondies are great as a snack or dessert. If you have some fresh blueberries to use up, this recipe is for you!

A hand placing a blueberry blondie onto a plate with others.
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These blueberry blondies are simple to prepare and a wonderful summer staple. Take them along to a picnic or gathering, or treat the kids when they get home hungry from school. Don’t forget to treat the chef too! You will love the way these taste!

So what are blondies anyway? They are similar to brownies but made without cocoa powder. They have vanilla, rather than chocolate, flavor. Blueberries pair well with vanilla, which is why these are so popular! The kids will love them and so will you.

Your house will smell sweet and delicious while they bake, so don’t be surprised if the kids wander into the kitchen to have a better sniff!

Pumpkin pie bars and these Meyer lemon bars are especially good as well and also make wonderful snacks too!

Main Ingredients

The ingredients used to make blueberry blondies.

This simple blueberry blondies recipe uses just 8 ingredients. You will also need an 8-inch square baking pan. Here are the key ingredients:

  • Blueberries: The main flavor in these treats.
  • Brown sugar: Adds not only sweetness but a rich molasses flavor.
  • Vanilla extract: Vanilla is to blondies what cocoa is to brownies, adding an amazing flavor.
  • Baking powder: This enhances the overall texture.

Instructions Overview

Are you ready to make some delicious Blueberry blondies? This is how to make them! Once you have gathered all the ingredients together, you can preheat the oven. Grease an 8-inch square baking pan and add some parchment paper on top (this will help you get them out of the dish after baking).

The flour, salt, and baking powder can be combined. The brown sugar and butter are mixed in another bowl, and then you can add the egg and vanilla. Now it’s time to combine the wet and dry ingredients along with one cup of blueberries. See how easy this is?

Spread the batter in the prepared pan, smoothing the top with a spatula. Press the rest of the berries into the top and then bake for around 35 minutes or until a toothpick inserted into the middle comes out clean. Now you have to use all your willpower not to eat these blueberry blondies until they’ve cooled for at least 15 minutes. Don’t worry, they are worth the wait!

Blueberry blondies getting cut into squares.

Common Questions

Are blondies supposed to be gooey?

These take about 25 minutes to cook and will look golden when they're done. Bear in mind they keep baking for a few minutes when they come out of the oven because they're hot so ensure as soon as the edges are golden you take them out. This means the inside will be deliciously gooey while the outside is crisp. Give them a little longer in there if you prefer them more cake-like though.

How do you know if a blondie is cooked?

Are your blondies seem to be golden brown at the edges, does this mean they're cooked enough? If they seem to be pulling away from the pan edges a little, they're definitely done. If you still aren't sure, insert a toothpick into the middle of the blondies and see whether it comes out nearly clean.

Why are my blondies greasy?

If you have this problem and it's like the butter is oozing out, it means you didn't combine the ingredients enough. It can also be caused by adding too much flour so ensure you sift the flour and they weigh it after.

How do you defrost a Blondie?

Making extra blueberry blondies is a great idea since you can freeze a batch. But how do you thaw them? The best way is to unwrap a frozen brownie is put it on a plate and leave it at room temperature for a couple of hours. You might like to give it 10 minutes in a warm oven to warm it back up but ensure it is thawed fully first for the best results.

How do I store these blondies?

They will keep in an airtight container for three days at room temperature, or up to a week in the refrigerator.

Can I make blueberry blondies ahead?

These are great for making ahead since you can refrigerate them for up to a week. The recipe is easy to double too if you want to make a batch of these for a party.

Can I freeze homemade blondies?

You can freeze these for up to 3 months. Cut them into individual portions first so you can thaw them separately.

What is good to serve with these?

They make a nice treat at any time, and you can pair one with any drink. Because these travel well, you can also take them to a picnic or gathering and enjoy them as part of a buffet spread.

Can I use frozen blueberries in this recipe?

Fresh blueberries are usually recommended over frozen, but would frozen berries work here? Yes, they would work fine and you wouldn’t even be able to tell the difference! Thaw them first then drain well.

Can I use white sugar instead of brown?

You could, but the molasses flavor would be missing. The best kind of sugar to use here is dark brown, followed by light brown and then white.

Nine blueberry blondies spread out on a table.

Chopnotch Tips

  • Double the ingredients if you want to use a brownie tray or jelly roll pan to bake them in. They will be a little thicker and the cooking time will increase a bit.
  • Frozen mixed berries would be another idea for these, as long as you thaw them fully and drain off excess liquid.
  • The cooking time varies according to your oven. Check them after 25 minutes to see how they’re doing.
Four blueberry blondies stacked on top of each other.

Everyone is going to rave about these amazing blueberry blondies. You’ll love how quick and easy they are to make, and as for the flavor? Put it this way, nobody is going to refuse a second helping!

Let us know what you think! Give this recipe a rating in the comments section below.


How to Make

Blueberry Blondies

Flavored with vanilla and rich brown sugar, these blondies make such a wonderful snack. You can enjoy one as a treat or take a batch to a picnic or party.
Prep Time: 10 minutes
Cook Time: 30 minutes
Cooling Time: 15 minutes
Total Time: 55 minutes
Servings: 9 blondies


  • 1 cup all-purpose flour
  • ¼ teaspoon salt
  • ½ teaspoon baking powder
  • 6 tablespoons unsalted butter, melted
  • 1 cup brown sugar
  • 2 teaspoons vanilla extract
  • 1 egg, large
  • 1 ½ cups fresh blueberries, divided
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  • Grease an 8-inch square baking pan and line it with parchment paper. Preheat the oven to 350°F.
  • Take a medium-size bowl and whisk baking powder, salt, and flour.
  • Now take another large bowl and whisk brown sugar and butter until smooth.
  • Add vanilla and egg and mix them well to combine.
  • Now stir in the dry ingredients until combined and then add 1 cup of the blueberries and gently mix them in.
  • After that, transfer this batter to the pan and smooth the top. Now press ½ cup blueberries into the top and bake for 30 – 40 minutes. Check the readiness by inserting a toothpick in the center.
  • Let the blondies cool for at least 15 minutes in the pan.
  • Remove from the pan, slice, and serve!
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  • Double the ingredients if you want to use a brownie tray or jelly roll pan to bake them in. They will be a little thicker and the cooking time will increase a bit.
  • Frozen mixed berries would be another idea for these, as long as you thaw them fully and drain off excess liquid.
  • The cooking time varies according to your oven. Check them after 25 minutes to see how they’re doing.

Nutrition Facts

Calories: 234kcal (12%), Carbohydrates: 38g (13%), Protein: 2g (4%), Fat: 8g (12%), Saturated Fat: 5g (31%), Trans Fat: 1g, Cholesterol: 38mg (13%), Sodium: 80mg (3%), Potassium: 99mg (3%), Fiber: 1g (4%), Sugar: 26g (29%), Vitamin A: 273IU (5%), Vitamin C: 2mg (2%), Calcium: 39mg (4%), Iron: 1mg (6%)
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