1 lb. (2 to 2 2/3 c.) powdered sugar
1/2 c. cocoa
1/2 c. butter
1/4 c. milk
1/2 c. chopped walnuts
1 tsp. vanilla

Combine sugar, cocoa, butter and milk in glass 2-quart measuring cup. Microwave 2-3 minutes or until butter is melted and mixture is bubbly. Stir. Mix in nuts and vanilla.

Spread in buttered 9-inch square pan or 8x10 inch square pan. Cool. Place in freezer 20 minutes or put in refrigerator 1 hour to chill.