don't know if this is the right one but found you this
ROCKY ROAD CAKE
1/2 c. butter
3/4 c. sugar
2 eggs
1 tsp. vanilla
3/4 c. all purpose flour
1/2 c. chopped pecans
2 tbsp. cocoa
1/4 tsp. baking powder
2 c. tiny marshmallows
1 (6 oz.) pkg. semi-sweet chocolate chips
1 c. crunchy peanut butter
1 1/2 c. Rice Krispies
Cream butter and sugar; beat in eggs and vanilla, stir together flour, nuts, cocoa, baking powder and 1/4 teaspoon salt. Stir in egg mixture; spread in 9 x 13 inch pan. Bake at 350 degrees for 15-20 minutes. Sprinkle marshmallows on top. Bake 3 minutes more.
In small saucepan combine chocolate bits and peanut butter; cook over low heat until melted. Stir in cereal. Spread on top of marshmallows. Chill; cut into bars