Every week in Genius Recipes—often with your help!—Food52 Creative Director and lifelong Genius-hunter Kristen Miglore is unearthing recipes that will change the way you cook. Here we have a meatball that skirts all our classic meatball fears—the dry, dense, flavorless fears, the not-worth-my-time-rolling-dozens-of-balls fears. The first secret is: There is no meat. These same fears…