1 c. butter
1/3 c. cocoa
2 c. sugar
4 eggs
1 1/2 c. flour
2 tsp. vanilla
1 1/2 c. chopped nuts
1 (10 oz.) pkg. miniature marshmallows

Blend butter, cocoa and sugar. Beat in eggs, one at a time. Stir in flour, vanilla and nuts. Pour into a greased 9 x 13 inch pan. Bake at 350 degrees for 20 to 25 minutes. (Don't overbake.) Remove from oven and put marshmallows on top. Return to oven for 7 more minutes. Marshmallows will fluff up and brown. Cool. Frost with frosting of your choice. Hide in refrigerator at least 12 hours before cutting or they will disappear. Freeze well!