Delish Recipes, Nosh · April 8, 2021Gruyere Grilled Cheese with Caramelized Onion and Mustard Credit: Broma Bakery To honor National Grilled Cheese Day this weekend, I am posting this magnificent work of art. There is a secret here to this sandwich so come in close…use mayo instead of butter on the outside of the bread to crisp it up and give it a zing!! Then add a lil mustard for that extra POW!! You will be in gastronomic HEAVEN. You can thank me later 🤣
