Do we really need another recipe for chocolate cake besides our definitive Black Magic Cake, the first Recipephany? Yes, because we also need chocolate mini-donuts drenched in chocolate ganache. Black Magic makes ultra-moist full-sized cakes, but it doesn’t work so well for tiny sweets. With this recipephany, you can make these intensely chocolatey cuties in the time it takes to bake a batch of cookies. These mini-donuts have a lot going for them. Besides looking adorable on a dessert plate, they’re great for portion control. Instead of cutting a whopping slab of cake, you can pick up one of these and dispatch it in a couple of genteel bites. Then you can go back and…