Rich peanut butter bars with a chocolate topping taste like homemade candy in a family-friendly, easy bar form. These no-bake treats are irresistible and disappear fast at any gathering.
In a large bowl, mix together 1 cup peanut butter and 0.5 cup melted unsalted butter until smooth.
Add 2 cups powdered sugar and 1.5 cups graham cracker crumbs to the peanut butter mixture. Stir until fully combined and a thick dough forms.
Press the mixture firmly and evenly into a parchment-lined 8x8-inch pan, ensuring an even layer for the base.
Melt 1.25 cups semi-sweet chocolate chips with 0.25 cup peanut butter (for topping) in a microwave-safe bowl in 20-second bursts, stirring until glossy and smooth. Do not overheat.
Pour chocolate mixture over the peanut butter layer and spread evenly with an offset spatula. Chill in the refrigerator for at least 1 hour, or until the chocolate is set before slicing into bars.