Are you sure you want to delete this recipe?
This recipe was uploaded by dawnrigoni
In a medium bowl, cream together peanut butter and margarine. Gradually blend in the brown sugar, white sugar, eggs, and vanilla; mix until fluffy. Combine flour, baking powder, and salt; stir into the peanut butter mixture until well blended. Fold under the chocolate pieces.
Bake for 20-25 minutes in preheated oven, or until the top springs back when touched. Cool, and cut into squares.