Red Velvet Cake
["1/2 c. plus 2 tsp. butter", "1 1/2 c. sugar", "2 eggs", "2 oz. red food coloring", "2 Tbsp. cocoa", "1 tsp. vanilla", "2 1/4 c. plain flour", "1 tsp. salt", "1/2 tsp. baking powder", "1 c. plus 2 tsp. buttermilk", "1 tsp. soda", "1 Tbsp. vinegar"]
["Cream butter and sugar.", "Add eggs one at a time.", "Add coloring, cocoa and vanilla.", "Beat well; add sifted flour, salt and baking powder.", "Alternate flour mixture with buttermilk.", "Put soda in vinegar and sprinkle over batter; fold in until well blended (don't beat).", "Bake in three 8 inch pans at 350\u00b0 for 20 to 25 minutes."]
["butter", "sugar", "eggs", "red food coloring", "cocoa", "vanilla", "flour", "salt", "baking powder", "buttermilk", "soda", "vinegar"]