Christopher Kimball’s Milk Street on Instagram: "Meet the “crazy” cake that breaks all the rules.⁠ ⁠ Born out of the Great Depression, then gaining a resurgence in popularity in the midst of World War II, this ultra-easy, dump-and-stir cake became a mainstay for home cooks across the country due to its ingredients—or lack thereof. Instead of the usual eggs, milk and butter, this cake relies on vinegar and baking soda for leavening, while coffee and cocoa powder deliver deep chocolate notes witho