Chocolate Icing - cooking recipe

Ingredients

3 c. sugar
1/4 c. Karo
3/4 c. milk
4 1/2 Tbsp. cocoa
3/4 tsp. salt
1 tsp. vanilla

Preparation

Mix all ingredients except vanilla.
Stir over low heat until margarine is melted.
Let come to a rolling boil and time 1 1/2 minutes.
Add vanilla.
I like to put this over a 9 x 13-inch yellow cake.
Put holes in the cake and let it run all through the cake.