Chocolate Beer Cake
["1/2 c. cocoa", "1/2 c. boiling water", "1/2 c. beer (room temperature)", "1/2 c. margarine", "1 1/2 c. sugar", "3 eggs", "3/4 c. buttermilk", "2 c. all-purpose flour", "1 tsp. baking powder", "1 tsp. baking soda", "1 tsp. vanilla"]
["Mix boiling water and cocoa;", "stir in beer and let stand to cool to lukewarm."]
["cocoa", "boiling water", "beer", "margarine", "sugar", "eggs", "buttermilk", "flour", "baking powder", "baking soda", "vanilla"]