Preheat your oven to 360° F. If using a cake pan, grease a cake pan with your oil of choice. For a sheet cake, line a 1" sheet tray with baking parchment paper. For cupcakes, set cupcake liners in your cupcake pans, and set aside.
Combine the Hungry Harry's Chocolate Cake mix, egg or egg replacer, milk, and oil.
Mix until completely combined.
Pour the cake batter into your mold of choice - besides making great sheet cakes, Hungry Harry's Chocolate Cake Mix works great for cupcakes, loaf pans, and tiered cakes!
Bake until a skewer or knife inserted in the middle comes out clean, 20-25 minutes.
Cool before frosting or decorating.