These peanut butter blondies are topped with Reese’s Pieces and stuffed with peanut butter flavor! This blondie dessert is a fun twist on the traditional blondies and makes the perfect treat!
Easy Peanut Butter Blondies
If you’re a peanut butter fan, you’re going to love these peanut butter blondies! They’re loaded with peanut butter flavor and are so rich and chewy. They bake to perfection and are soft in the middle, yet crispy around the edges. Mmm…so, so good!
This blondie dessert tastes like a mix between a classic blondie, M&M cookie bar and peanut butter bar. It’s got a great ratio of peanut butter and chocolate flavor and is absolute heaven. You’ll need a large glass of milk with these tasty bars. Perfection!
Best Type of Peanut Butter to Use
When making this recipe, it’s important to use creamy peanut butter, such as Jif or Skippy. A natural, drippy variety will not give you the same soft texture as the creamy type.
- Line your baking dish with foil for easy removal.
- Make sure to accurately measure the flour with the spoon and level technique.
- Place extra Reese’s pieces on top prior to baking. This makes them look extra pretty.
- Don’t overbake! They may look a little soft, but they’ll harden as they cool.
- Use a toothpick to make sure the center of your peanut butter blondies comes out clean.
This recipe is super versatile, so feel free to make it your own. Swap Reese’s pieces for M&M’s, or use white or semi sweet chocolate chips in place of peanut butter chips. Chopped Reese’s cups are also an easy substitute for Reese’s pieces.
Or leave out the mix-in’s all together if you prefer. These peanut butter blondies are plenty chewy and delicious all on their own!
Can I Freeze Peanut Butter Blondies?
Yes, peanut butter blondies freeze very well. To freeze, simply wrap in foil and place in an airtight container or freezer bag. The blondie dessert will keep in the freezer for up to 3 months. When ready to enjoy, let thaw on the counter about an hour beforehand.
Although they are both decadent and chewy dessert bars, they both have a totally different flavors. Brownies are made with chocolate and taste fudgy and rich, while blondies are made without chocolate and usually get their flavor from the brown sugar and vanilla (and peanut butter in this case).
Yes! The key to a perfect blondie is a gooey center. To achieve this texture, it’s important to remove the blondies from the oven when the edges are barely golden and the blondie is still soft in the center. They might look a little under done, but they’ll continue to set as they cool.
Over mixing the batter is the #1 culprit for blondies that have gone cakey. When too much air is incorporated into the mixture, this creates a light and fluffier texture similar to cake. So don’t get heavy handed with your batter. Mix the batter just until combined and then stop!
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Peanut Butter Blondies
- ½ cup (1 stick) butter , slightly melted
- 1 cup light brown sugar , packed
- 1 large egg , whisked
- 1 teaspoon vanilla extract
- ½ cup creamy peanut butter , I prefer Jif's or Skippy for this recipe
- 1 cup all-purpose flour , divided
- 1 teaspoons baking powder
- ½ teaspoon Kosher salt
- ½ cup Reese's Pieces , or chopped reese's
- ½ cup peanut butter chips , or chocolate chips
- Preheat oven to 350°F and grease a 9×9" pan. Lightly dust with flour or line with parchment paper or foil. Gather ingredients.
- Whisk the butter and sugar in a large bowl or use a handheld mixer. Add in egg and vanilla and stir until combined. Then add in the peanut butter and mix until combined.
- Mix in the flour, baking powder and salt. Fold in Reese's Pieces and chips and mix just until combined.
- Press the dough into the pan (flour your hands if you need to). Press extra Reese's Pieces and peanut butter chips on top if you’d like.
- Bake for 18-23 minutes or until a toothpick comes clean. The dough should be soft in the center and the edges lightly golden.
- Allow bars to cool and then slice into 9 bars.
Nutrition provided is an estimate. It will vary based on specific ingredients used.
Did you make this recipe? Don’t forget to give it a star rating below!
These would be the death of me!! So, so good! Love reese’s in desserts!
Such a delicious blondies recipe! And don’t worry, I added plenty of extra M&Ms!;)
Anything peanut butter is my favorite and this sounds so so good.
Mmmmmm, Brownies… and Peanut butter! Thanks for the recipe!
These look great, just what I was searching for!!! What is pictured on top of these and when did you add them??
Hi Meaghan! I just added extra M&Ms on top at the end right before baking! :)
I love your recipes! Just tried the blondie one, but confused w/the 2.5 cups in the recipe list and then the 1 cup in the directions. I used 2.5 cups and ended up w/blondie bread. Which isn’t a bad thing….
The directions say add 1 cup of flour and then in the next step it says add the rest…..
Hi Becky! You will be adding 2 1/2 cups of flour total, sorry for the confusion!
Hi Judy! Sorry for the confusion. It is 2.5 cups but it should be more of a brownie texture! Blondie bread would be yummy though! :)
Reese’s are always a welcome part of any dessert with our family … love how you made these Blondies pretty for Easter!
We are a Reese’s loving family too! These blondies were oh so good! :)
Love this twist on the classic blondie! Can’t wait to try it!
If you are a peanut butter lover, you will love them Katie! :)
These look amazing!!!
Thanks Erin! My family was in heaven when we made these! :)
Wow! Hard to believe Easter’s only a few short weeks away! These pretty Blondies are sure to please!
I know, it’s crazy how fast it is coming! Thanks for commenting Susan, I hope you try these blondies…they are so yummy! :)