- 2 cups all-purpose flour
- 1 cup white sugar
- 4 tablespoons unsweetened cocoa powder
- 1 teaspoon baking powder
- 1 teaspoon baking soda
- 1 cup mayonnaise
- 1 cup water
- 1 teaspoon vanilla extract
- Preheat oven to 350 degrees F (175 degrees C). Grease one 11×7 inch pan.
- Sift together flour, sugar, cocoa, baking powder, and soda. Add mayonnaise, cold water, and vanilla. Beat 2 minutes. Pour into prepared pan.
- Bake at 350 degrees F (175 degrees C), 30-35 minutes. Frost if desired.