Peanut Butter Candy Bar Blondies with Reese's and Chocolate

Rich, chewy blondies loaded with peanut butter flavor and studded with Reese's Minis, chocolate chips, and Reese's Pieces. The combination of melted butter and brown sugar creates a fudgy base, while molasses adds depth and prevents overly sweet results. Perfect for potlucks, bake sales, or satisfying serious chocolate-peanut butter cravings. The mix of textures from different candies makes each bite interesting, and the 9x13 pan yields plenty for sharing.
Ingredients
- 1 stick unsalted butter
- 1 ½ cups packed light brown sugar
- 2 teaspoons vanilla extract
- 1 teaspoon mild molasses
- 2 large eggs, room temperature
- ½ cup creamy or crunchy peanut butteralmond butter1:1nut-freeketopeanuts-freeadds dairy
use sunflower seed butter for nut-free
Full guide → - 1 teaspoon baking powder
- ½ teaspoon salt, plus an extra pinch
- 1 ½ cups all-purpose flouralmond flour1:1gluten-freeketogluten-free
may need extra binding
- 1 cup Reese's Minis
- 1 cup Hershey's milk chocolate melting chips
- ½ cup Reese's Pieces
Instructions
- 1
Preheat oven to 350°F and line a 9x13 inch metal pan with nonstick foil
- 2
Melt butter in small saucepan or microwave-safe bowl
- 3
Pour hot butter into large mixing bowl and add brown sugar, stir well and let cool slightly so brown sugar melts
- 4
Whisk in vanilla, molasses, room temperature eggs, and peanut butter
- 5
Add baking powder and salt, whisk until blended, then gently whisk in flour
- 6
Stir in melting chips, Reese's Minis and Reese's Pieces
- 7
Spread in prepared pan and bake for 25 to 30 minutes or until wooden pick inserted in center comes out clean
Tips
Use room temperature eggs to prevent the mixture from seizing when combined with warm butter and sugar.
Don't overbake - blondies continue cooking in the hot pan after removal from oven, so slight underbaking ensures fudgy texture.
Good to Know
Store covered at room temperature for up to 5 days or refrigerate for up to 1 week
Make up to 2 days ahead, store covered
Serve at room temperature, cut into squares
Common Mistakes
Don't overbake to avoid dry, cakey texture
Let butter mixture cool slightly to prevent eggs from scrambling
Substitutions
Gluten-Free Swaps
Nut-Free Alternatives
use sunbutter candies or chocolate chips
use sunflower seed butter for nut-free
Full guide →FAQ
Can I use natural peanut butter instead of regular?
Regular peanut butter works best as natural versions can make the bars too oily or cause separation issues.
How long do these keep at room temperature?
Store covered for up to 5 days at room temperature, or refrigerate for longer storage up to 1 week.
Can I freeze these blondies?
Yes, wrap individual pieces or whole pan tightly and freeze for up to 3 months. Thaw at room temperature.