3 eggs
1 1/2 c. sugar
2/3 c. oil
2/3 c. water
3 tsp. baking powder
1 tsp. lemon
2 c. flour

Pour 3/4 of above batter into pan. Add 3/4 tablespoons cocoa to rest of batter. Drizzle into batter in pan. Swirl with knife. Bake at 350 degrees for 45 minutes.