3 dozen bars

You might need to buy:
  • butter or 3/4 cup margarine
  • sugar
  • large eggs
  • vanilla extract
  • all-purpose flour
  • baking powder
  • salt
  • cocoa
  • chopped nuts
  • miniature marshmallows
  • Topping:
  • chocolate chips
  • butter or 3 tablespoons margarine
  • peanut butter