french onion mac and cheese

The recipe begins the exact same way as French onion soup does, with a big pile of onions that reduces down into golden, caramelized goodness. Cooking the onions the right way takes time but it’s worth the wait! After that, you make a pretty standard mac and cheese sauce, or mornay, using provolone and gruyere, and then I add Dijon mustard and fresh thyme.