1/2 c. butter
2 eggs
3/4 c. flour
2 tbsp. cocoa
1/4 tsp. salt
3/4 c. sugar
1 tsp. vanilla
1/2 c. chopped nuts
1/4 tsp. baking powder
2 c. mini marshmallows

TOPPING:

1 pkg. (6 oz.) chocolate chips
1 1/2 c. Rice Krispies cereal
1 c. creamy peanut butter

Cream butter and sugar; beat in eggs and vanilla. Set aside. Stir together flour, chopped nuts, cocoa, baking powder and salt. Stir in egg mixture. Spread in bottom of a greased 13x9x2 baking pan. Bake at 350 degrees for 15-20 minutes or until tests done. Sprinkle marshmallows evenly on top; bake 3 minutes more. Cool.

Topping: In small saucepan combine chocolate chips and peanut butter. Cook and stir over low heat until chocolate mixture is melted. Stir in cereal. Spread mixture on top of cooled bars. Chill (refrigerate). Cut into bars.