These meatballs, inspired by traditional Korean barbecue, bring the savory-sweet flavors of caramelized meat without the need for a grill. As the meatballs bake, the soy sauce marries the garlic and scallions to create a glaze. This meatball mixture can be made ahead and left to marinate in the fridge for 3 hours or even overnight. Use ground beef that is 85 percent lean meat, 15 percent fat, or 80 percent lean and 20 percent fat for juicier meatballs. The Ritz crackers here make for a more…