1/2 c. butter
1/3 c. water
1 (16 oz.) pkg. powdered sugar
1/2 c. nonfat dry milk powder
1/2 c. cocoa powder
Dash of salt

In a saucepan heat together butter and water to boil. Remove from heat and add rest of the ingredients. Mix well and turn into a buttered 8x8x2 inch pan. Chill several hours.