French Onion Mac and Cheese is a delicious twist on the classic macaroni and cheese dish. It combines the flavors of French onion soup with creamy and cheesy macaroni. The dish starts with caramelized onions, which are cooked until golden and sweet. The onions are then combined with cooked macaroni and a rich cheese sauce made with Gruyere and Parmesan cheese. The mac and cheese is topped with crispy breadcrumbs and broiled until golden and bubbly. The result is a comforting and flavorful dish that is perfect for any occasion.