The crowd-favorite Reuben sandwich gets turned into a cheese-studded, all-beef meatball in this hearty appetizer that’s sure to be a conversation starter. Pile ‘em high and serve with toothpicks and dressing for dipping at your next cocktail party (Russian dressing is traditional if you can find it, but thousand island is a more-than-worthy substitute). Although the sweet spices may seem like an unorthodox addition to meatballs, don’t skip them as they add a lovely depth of flavor. Any leftovers are delicious on a sandwich--try them on a soft sweet roll with iceberg lettuce and lots of dressing.