1 pkg. chocolate cake mix
1 stick butter, melted
1/2 c. peanut butter, chunky style
1 (7 or 7 1/2 oz.) jar marshmallow cream

Combine butter and dry mix. Reserve 1 1/2 cups for topping. Gently press the rest into ungreased 9 x 13 x 2 inch pan. Top with layer of combined peanut butter and marshmallow cream. Crumble remaining mixture over cream. Bake 20 minutes in 350 degree oven. Cool and cut into bars.