My Best Fudge Frosting - cooking recipe

Ingredients

1/2 c. granulated sugar
2 Tbsp. margarine
2 Tbsp. cocoa
1/4 c. milk
1 Tbsp. light corn syrup
pinch of salt
1/2 to 3/4 c. 4xxx sugar
1 tsp. vanilla

Preparation

Mix sugar and cocoa in boiler.
Add margarine, milk, syrup and salt.
Heat to boiling, stirring frequently.
Boil vigorously 3 minutes.
Stir occasionally.
Cool.
Beat in 4x sugar and vanilla.