3 c. flour
2 tsp. baking soda
6 tbsp. Hershey's cocoa (rounded)
2 c. sugar
1 tsp. salt

Put all ingredients in a 13"x9"x2" cake pan. Stir to blend. Make 3 holes. In first hole, put 2 tablespoons vinegar. In second hole put 1 tablespoon vanilla. In third hole, put 3/4 cup oil. Put 2 cups water around edge. Stir to blend. Bake for 40 to 50 minutes at 350 degrees or put in 2 (8") square pans for 30 minutes at 350 degrees.