Double Chocolate Bars
["1/2 c. butter", "3/4 c. sugar", "2 eggs", "1 tsp. vanilla", "3/4 c. flour", "1/4 tsp. salt (optional)", "2 Tbsp. cocoa", "1/4 tsp. baking powder", "2 c. tiny marshmallows", "6 oz. (1 c.) semi-sweet chocolate pieces", "1 c. peanut butter", "1 1/2 c. Rice Krispies"]
["Preheat oven to 350\u00b0.", "Cream butter, sugar, eggs and vanilla. Stir together flour, cocoa, baking powder and salt.", "Stir into egg mixture."]
["butter", "sugar", "eggs", "vanilla", "flour", "salt", "cocoa", "baking powder", "marshmallows", "semi-sweet chocolate pieces", "peanut butter", "Rice Krispies"]