Go Back
–+ servings

Peanut Butter Chocolate Cookie Bars

Ania
Peanut Butter Stuffed Chocolate Cookie Bars taste like peanut butter cups in cookie bar form! The peanut butter filling is sandwiched between soft chocolate cookie layers. Peanut butter chocolate fans, this one's for you!
4.70 from 10 votes

Ingredients
 
 

Peanut Butter Layer

Instructions
 

  • Preheat oven to 350°F. Line an 8×8-inch pan with parchment paper and spray with nonstick cooking spray. Set aside.
  • Melt the butter and then transfer it into a large bowl. Allow to cool for 10 minutes.
    1/2 cup butter
  • Add white sugar and brown sugar and whisk until the mixture is smooth. Whisk in egg and vanilla extract.
    1/4 cup white sugar, 1/3 cup light brown sugar, 1 tbsp vanilla, 1 egg
  • Fold in cocoa. Then slowly fold in the baking soda, salt, and flour until the batter is smooth and comes together. Don't overmix!
    1/4 cup dark unsweetened cocoa powder, 1 1/3 cups all-purpose flour, 1/2 tsp baking soda, 1/4 tsp salt
  • Add in the chocolate chips and gently fold in a few times to incorporate them.
    3/4 cups semi-sweet chocolate chips
  • Press half of the cookie dough in the bottom of the prepared pan. The layer will be thin, make sure the entire bottom is covered.
  • Melt the peanut butter in the microwave or using a double boiler method. Transfer into a medium-sized bowl. Add in powdered sugar, milk, and vanilla. As you mix it, the mixture will turn very thick. Spread over the cookie layer, leaving a small border around the edges.
    1 cup peanut butter, 1 cup powdered sugar, 1 tsp vanilla, 2 tbsp milk
  • Add the remaining cookie dough on top. Make sure to seal in all the edges!
  • Bake for 30-35 minutes or until the top looks no longer glossy. Cool completely before slicing into bars. As the bars cool, they continue to bake, so this is important.
  • Leave on the counter at room temperature for up to 3 days. Individually freeze for up to 2 months. Enjoy!