½-ounceHershey’s chocolate bar3 sections from King size bar
Instructions
Preheat oven to 350 F. Spray a 9x9 baking dish with non-stick cooking spray.
Beat chocolate cupcake mix, water, oil, and eggs in a large bowl on low speed 30 minutes, then on medium speed for 2 minutes. Pour batter into prepared pan.
Stir peanut butter mix, softened butter and 1 tablespoon of the milk together until well blended and butter is not longer visible. Add remaining 1 tablespoon of milk and slowly mix, to avoid splashing, until completely blended.
Drop peanut butter batter on top of chocolate batter in dollops. Use a butter knife to swirl the peanut butter batter through the chocolate batter.
Bake in preheated oven for 45-50 minutes, or until center springs back when touched.
Cool completely on a wire rack before slicing.
To serve:
Place peanut butter and Hershey’s chocolate bar in a small bowl and microwave for 20-25 seconds until melted. Stir together until combined and drizzle across plate. Serve slice of cake on top of sauce for dipping. No need to hide that pretty marbled top with icing!