We gathered all the ingredients of French onion soup and turned them into appetizer nachos that will truly steal the show. Thinly sliced baguette croutons, onions rich in flavour after simmering in beef broth and red wine, and Gruyère balanced with medium cheddar and layered for maximum flavour in every bite. Serve with an onion dip made with sour cream, mayonnaise and green onions for a touch of freshness.