One of our favorite comfort foods—French onion soup—meets crowd-pleasing grilled cheese in a sandwich that’s got the flavors of both dishes, minus a lot of the traditional sodium and sat fat. Silky caramelized onions are the star here: their pungent, concentrated flavor means that just a touch of Gruyere is more than enough to make this sandwich sing. The other key? Shaving the cheese with a Microplane, which allows the cheese to distribute its melty goodness evenly, and makes just a bit of cheese feel like a lot.
How to Make It
Spray a skillet with nonstick spray. Place four slices of bread in pan over medium-low heat.
Top each bread slice with 1/4 cup caramelized onions and 1/4 cup cheese. Sprinkle each sandwich with 1/4 tsp fresh thyme.
Heat on medium-low until the bread is toasted, onions are heated through, and cheese begins to melt. Top with additional bread slice.
Flip each sandwich over and heat until cheese is melted and bread is toasted. Serve immediately.