Preheat the oven to 350°F. Spray one 8 inch cake pan with baking nonstick spray. Line the bottom of the cake pan with a parchment circle. Spray again.
In a mixing bowl, sift the flour, cocoa powder, baking soda, baking powder, and salt.
1 cup All-purpose flour, 1/2 cup Dutch process cocoa powder, 1 tsp Baking powder, 1/2 tsp Baking soda, 1/2 tsp Salt
In a separate bowl, mix the oil, sugar, vanilla, eggs, sour cream, and buttermilk. Heat the water on the stove until steamy. Slowly add in the water and mix. Pour the dry ingredients in the wet.. Whisk until combined. This will be a runny batter
1/2 cup Oil, 3/4 cup White granulated sugar, 1 tsp Pure vanilla extract, 2 Large eggs, 1/4 cup Sour cream, 1/2 cup Buttermilk, 1/2 cup Hot water
Pour the cake batter into the pan. Bake for 38-43 minutes. Bake until a toothpick inserted comes out clean.
Let the cake sit in the pan for 10 minutes before transferring to a cooling rack. Let the cake cool completely before decorating.