1 c. margarine (I used butter)
2 c. sugar
1/3 c. cocoa (I used 2/3 c.)
1 1/2 c. flour (I decreased this by a bit to account for the added cocoa)
1 tsp. salt
2 tsp. vanilla
Soften margarine and blend in 2 cups sugar and cocoa. Beat together and add 4 eggs, one at a time. Add flour, salt and vanilla.
Spread on large (10x15x1 inch) greased cookie sheet. Bake 25 minutes at 350. Remove from oven and cover entire top with 1 package of miniature marshmallows. Return to oven for 3 minutes, until soft and puffy. Cool and frost with chocolate frosting.
1 stick margarine (1/2 c.), softened (used butter)
1/4 cup milk
1-2 tsp vanilla
3 tablespoons of cocoa (I doubled this)
2-3 cups of powdered sugar
Mix all ingredients with a hand mixer until smooth. Add more powdered sugar or milk until you reach desired consistency and spread on top of bars.