3 c. flour
6 tbsp. cocoa
2 tsp. baking soda
1 tsp. salt
2 c. sugar
2 tbsp. vinegar
2 tsp. vanilla
2/3 c. oil
2 c. lukewarm water

Sift dry ingredients together. Put in large bowl. Indent 3 holes in dry ingredients. In first hole pour 2 tablespoons vinegar. In second hole pour 2 teaspoons vanilla. In third hole pour 2/3 cup oil. Over the entire top pour 2 cups lukewarm water. Whip with wire whisk until smooth. Pour into greased and floured 9"x13" pan. Bake at 350 degrees for 30 minutes.

FROSTING: Whip 1/2 stick butter with 2 cups sifted powdered sugar and 2 tablespoons cocoa with 1 heaping tablespoon sour cream and 3 to 4 tablespoons hot coffee.