Recipe - Cheese Fondue Burger INGREDIENTS: ●4 (6 to 8-ounce) beef burger patties ●Kosher salt to taste ●Cracked black pepper to taste ●1 medium Spanish onion, sliced ●1 whole clove ●1 to 2 tablespoons olive oil ●3/4 cup (6 ounces) Riesling wine ●1 cup heavy whipping cream ●2 cups (8 ounces) Wisconsin Swiss or Emmentaler Cheese, shredded ●1 cup (4 ounces) Wisconsin Gruyere Cheese, shredded Salt and freshly ground pepper to taste ●4 burger buns, toasted ●1 Granny Smith apple, cored, sliced into thin rings