For The Cake

• Butter and flour for coating and dusting the cake pan
• 3 cups all-purpose flour
• 3 cups granulated sugar
• 1 1/2 cups unsweetened cocoa powder
• 1 tablespoon baking soda
• 1 1/2 teaspoons baking powder
• 1 1/2 teaspoons salt
• 4 large eggs
• 1 1/2 cups buttermilk
• 1 1/2 cups warm water
• 1/2 cup vegetable oil
• 2 teaspoons vanilla extract

For The Frosting

• 1 1/2 cups butter softened
• 8 oz cream cheese softened
• 1 1/2 cups unsweetened cocoa powder
• 3 teaspoons vanilla extract
• 7-8 cups powdered sugar
• About 1/4 cup milk as needed