1 lb. box powdered sugar
1/2 c. cocoa
1/4 c. milk
1/2 c. butter
1 tbsp. vanilla
1/2 c. chopped nuts

Microwave all ingredients except vanilla and nuts on full power until butter is melted, about 2 to 3 minutes. Stir until smooth. Blend in vanilla and nuts. Spread into buttered 8 inch square pan. Cool and cut in squares.