Chewy Peanut Butter Cup Blondies

Golden and buttery peanut butter cup blondies make the best anytime treat! Filled with mini peanut butter cups, these easy one-bowl blondie bars are baked in an 8-inch pan and come together in 40 minutes from start to finish (no mixer or chilling required!).

Made with melted butter and brown sugar, soft and chewy blondies are one of my favorite homemade dessert bars.

From easy chocolate toffee blondies to white chocolate snickerdoodle blondies, there’s a blondie for every craving. Blondies with peanut butter are a natural next step in my blondie recipe collection.

Chopped mini peanut butter cups are baked into the buttery, peanut butter-blondie batter; another handful are scattered over the top before baking. Rich and buttery with perfect chewy texture, these blondies are a must bake for peanut butter lovers!

Key Ingredients

Here’s what you need to make peanut butter blondies:

• Butter – We’re adding plenty of salt to balance out the flavor of the blondies, so unsalted butter is best.
• Peanut butter – I use and recommend a creamy peanut butter like Skippy or Jif. Natural peanut butters tend to dry out baked goods and could cause your blondies to crumble or have a dry, sandy texture.
• Brown sugar – You can use light or dark brown sugar in this recipe. Dark brown sugar will add a bit more molasses flavor to the bars.
• Eggs – One large egg plus one whole egg yolk binds the blondie batter together. The extra egg yolk adds richness and gives the blondies the best chewy texture.
• Vanilla – Pure vanilla extract complements the peanut butter flavor.
• Salt – Enhances the flavor.
• Flour – Use all-purpose flour in this recipe.
• Mini peanut butter cups – I like Reese’s brand. You can also find mini peanut butter cups at Trader Joe’s.

How to Make Peanut Butter Blondies

Combine butter and peanut butter in a large bowl and microwave in 20 second bursts until butter is melted (about 1 minute total). If you don’t have a microwave, melt butter and peanut butter together in a small saucepan over medium-low heat.

Whisk melted butter and peanut butter to combine. Add brown sugar, egg, egg yolk, vanilla, and salt to the mixing bowl.

Whisk the mixture together until completely smooth and incorporated.

Add all-purpose flour to the bowl and gently stir in with a spatula just until incorporated and no flour streaks remain.

Fold in mini peanut butter cups.

Scrape blondie batter into prepared 8-inch square baking pan. Top with remaining peanut butter cup halves, pressing gently into the batter.

Bake blondies for 25 to 27 minutes, until golden and set in the middle, and a toothpick inserted in the center comes out clean or with a few crumbs attached (don’t over-bake to avoid a dry blondie).

Cool blondies completely before cutting into squares. For added indulgence, serve blondies with a scoop of vanilla ice cream and enjoy!

More easy brownies and blondies:

• Chocolate Toffee Blondies
• Peanut Butter Cup Brownies
• Ultimate Crinkle Brownies
• Snickerdoodle Blondies

Did you try these Peanut Butter Cup Blondies? Let me know by leaving a comment and rating below!

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