1 lb. powdered sugar
1/4 c. cocoa or 2/3 c. chunky peanut butter
1/2 c. chopped nuts
1 stick butter (butter)
1/4 c. milk
1 tsp. vanilla

Place sugar, butter, milk and cocoa in a glass mixing bowl. Do not mix. Microwave on High for 4 minutes. Mix well and stir in vanilla and nuts. Pour into lightly buttered 8 x 8-inch dish and refrigerate 5 minutes.