Deluxe Chocolate Marshmallow Bars
["3/4 c. butter or margarine", "1 1/2 c. sugar", "3 eggs", "1 tsp. vanilla", "1 1/3 c. flour", "1/2 tsp. baking powder", "1/2 tsp. salt", "3 Tbsp. cocoa", "1/2 c. chopped nuts", "4 c. miniature marshmallows", "1 1/3 c. chocolate chips", "3 Tbsp. butter or margarine", "1 c. peanut butter", "2 c. crisp rice cereal"]
["In mixing bowl, cream butter and sugar.", "Add eggs and vanilla; beat until fluffy.", "Combine flour, baking powder, salt and cocoa. Add to creamed mixture.", "Stir in nuts, if desired and spread into a greased jelly roll pan.", "Bake at 350\u00b0 for 15 to 18 minutes. Sprinkle marshmallows evenly over cake, return to oven for 2 to 3 minutes.", "Using a knife dipped in water, spread the melted marshmallows evenly over cake.", "Cool."]
["butter", "sugar", "eggs", "vanilla", "flour", "baking powder", "salt", "cocoa", "nuts", "marshmallows", "chocolate chips", "butter", "peanut butter", "crisp rice cereal"]