Fudge Icing 

2 tbsp. light corn syrup
2 tbsp. boiling water
1 1/2 cups powdered sugar
1/3 cup butter
1/2 tsp. salt
3 cups powdered sugar
1/4 cup milk
1 tsp. vanilla

Mix together until smooth: corn syrup, boiling water and 1 1/2 cups powdered sugar. Cream in butter and salt. Alternately beat in 3 cups powdered sugar, 1/4 cup milk and vanilla, beating until smooth.