Ingredients
2 cups all-purpose flour
1 cup granulated sugar
2 teaspoons baking soda
1 teaspoon vanilla extract
1/2 cup unsweetened cocoa powder
1 cup mayonnaise full fat
1 cup warm water
Instructions
Preheat oven to 350°F (175°C). Grease a 9×13 inch baking pan.
In a large bowl, combine all ingredients. Mix well until smooth.
Pour batter into the prepared pan, spreading evenly.
Bake for 30-35 minutes, or until a toothpick inserted in the center
comes out clean.
Allow to cool completely before frosting (if desired).