Preheat the oven to 350°. Spray two 9-inch cake pan with baking nonstick spray. Line the bottom with 8-inch parchment paper and spray again.
In a large bowl, sift the flour and cocoa powder together. Add the sugar, baking powder, baking soda, and salt. Set aside.
1 cup All-purpose flour, ¾ cup White granulated sugar, ⅓ cup Unsweetened cocoa powder, 1 teaspoon Baking powder, ½ teaspoon Baking soda, ½ teaspoon Salt
Heat the water in a saucepan until steaming. In a medium bowl, mix the oil, vanilla, eggs, and buttermilk. Then, slowly mix in the hot water.
¼ cup Oil, 1 teaspoon Pure vanilla extract, 2 Large eggs, ½ cup Buttermilk, ⅓ cup Hot water
Pour the wet ingredients into the dry ingredients and whisk until combined. It will be a runny batter.
Pour between the two cake pans.
Bake for 20-25 minutes until a toothpick inserted comes out clean.
Let the cakes sit in the hot pan for 10 minutes before transferring to a cooling rack. Let it cool completely. Wrap the cake slices tightly in plastic wrap. Freeze overnight.
Line a 8-inch cake pan with aluminum foil or plastic wrap. Let the ice cream softened for 15 minutes. Spread 1.5 quarts of cookie dough ice cream into the pan. Use a spatula to smooth it until even.
1.5 quarts Alden's Organic Cookie Dough Ice Cream
Freeze overnight.