Chocolate Frosting - cooking recipe

Ingredients

1/4 c. cocoa
3/4 c. sugar
1 tsp vanilla
2 tbsp flour
1 c. milk
1 tsp butter

Preparation

Mix together cocoa, flour, sugar and milk; cook slowly until thicken, stirring constantly.
Remove from heat; add vanilla and butter, stirring gently until cool and thick enough to spread.