For the Chocolate Cake: 16 oz box of chocolate cake mix (dry) 3 oz box of instant chocolate pudding (dry) 1/2 cup sour cream 3/4 cup vegetable oil 1/2 cup whole milk 3 large eggs 1 tsp vanilla extract 1/2 tsp salt For the Filling: 3 oz box of instant chocolate pudding 2 cups whole milk For the Chocolate Frosting: 2 cups heavy cream 1/2 cup powdered sugar 1/3 cup instant chocolate pudding For the Topping: 16 Oreo cookies 10 Milano Cookies Black gel icing (for writing) 5 Ghost Peeps 15 Candy Pumpkins Halloween Sprinkles (optional)