3 homemade chocolate sheet cake Recipes

flour, sugar, unsweetened cocoa, salt, eggs, baking soda, baking powder, sour milk or 2 cups buttermilk, oil, vanilla

dark chocolate fudgecake mix, eggs , oil, & water to mix cake (how much you need of each depends on the mix you use), unsalted butter, softened, sugar, marshmallow fluff (see my post for homemade), heavy cream, icing, heavy cream, semisweet chocolate, finely chopped, unsalted butter, softened, identical 8-9 cake pans, an oven-safe ceramic bowl 3-4 in diameter, a cookie sheet, a ziplock bag