Stay Soft Icing - cooking recipe

Ingredients

1/4 c. cocoa
3/4 c. sugar
2 Tbsp. cornstarch
1/2 c. evaporated milk
1/2 c. water
1/2 tsp. vanilla
2 Tbsp. butter

Preparation

Mix cocoa, sugar and cornstarch together in a pan. Add milk and water.
Cook until thick. Remove from heat and add milk and butter.
Stir.