I'm all about using up leftovers and that goes for dessert things too. I had some leftover chocolate chip cookie dough in the fridge and some peanut butter frosting. I did a quick search for some peanut butter recipes and found the perfect one that went with my ingredients except I had to tweak it a little. I had enough cookie dough to cover and spread the bottom of the tin and then spread some of the peanut butter frosting on top and added a few chocolate chips. This recipe calls for another layer of cookie dough on the top. I baked it at 325-350 degrees for about 20 mins. If you want peanut butter and chocolate, you got it in this little square of goodness!
Combine icing sugar, peanut butter and vanilla; mix well.
Press half of dough into bottom of ungreased 8 or 9-inch (20 or 23 cm) square baking pan. Press peanut butter mixture evenly over dough. Cut remaining dough into thin slices and arrange on top of peanut butter mixture.
Bake 30 to 35 minutes or until golden brown and firm to the touch. Cool for 30 minutes. Refrigerate until chilled. Cut into squares. Serve chilled or at room temperature.