Chocolate Marshmallow Bars

2 squares butter or margarine
1/3 cup cocoa
2 cups sugar
4 eggs
1 1/2 cup flour
1 1/2 cup walnuts
2 tsp vanilla
1 package Mini Marshmallows

Mix butter, cocoa, and sugar well. Add eggs and beat well after adding flour, walnuts, and vanilla. Put on greased cookie sheet. Bake at 350 degrees for 25 minutes. Remove from oven and coven with marshmallows and return to oven for 3 minutes. Let cool 1 hour, then spread icing on top.

Icing:

1/2 cup butter
1 1/3 cup powdered sugar
1/3 cup cocoa
1/3 cup canned milk

Mix and Let stand room temperature over night or all day.