Join Chris Morocco in the Bon Appétit Test Kitchen as he makes easy chocolate cake. If you've got a bowl, a cheap hand mixer, and a couple of measuring cups, you can make this rich, chocolatey cake. Got a lot of birthdays on the horizon? You can pre-mix batches of the dry ingredients together, store them in airtight containers for up to three months, and be ready to celebrate at a moments notice with your own DIY cake mix.