Chocolate Icing - cooking recipe

Ingredients

2/3 c. butter or margarine
1 c. granulated sugar
2 Tbsp. heaping cocoa
1/3 c. whole milk
3 c. sifted powdered sugar
1 tsp. vanilla

Preparation

Place butter, cocoa and white granulated sugar in heavy pot and heat over low heat for 2 minutes.
Add 1/3 cup whole milk. Bring to a boil.
Cool and add powdered sugar and vanilla.
Beat well.
Ices 2 layers.
Double recipe for 3 to 4 layers.