1/2 cup unsweetened cocoa powder, (plus more for the pans)
3 cups all-purpose flour
1 1/2 cups granulated sugar
2 tsp. baking soda
1/2 tsp. salt
1 cup Hellmann's® or Best Foods® Real Mayonnaise
1 cup hot water
1 Tbsp. vanilla extract
Preheat oven to 350°. Butter and cocoa powder 2 ( 8-inch) cake pans. Mix all dry ingredients in a large bowl; flour, sugar, cocoa powder, baking soda and salt. Then add Hellmann's® or Best Foods® Real Mayonnaise, eggs, water and vanilla and stir until just mixed through. Divide batter into the 2 prepared pans.
Bake 25 minutes or until a toothpick inserted in the centers comes out clean. Unmold the cakes and allow to cool 30 minutes. Frost with your favorite frosting, but I like simple whipped cream for this.