French Onion Grilled Cheese - Mountain Cravings

French Onion Grilled Cheese

French Onion Grilled Cheese

Colorado’s winter-spring waltz has my food cravings all confused. With snow dusting the ground in the morning and hot shorts-ready sun in the afternoon, I don’t know if I want a big bowl of chili or a smoothie. These fit right in with cozy comfort food – melty caramelized onions! gooey gruyere! – but without the afternoon food coma.

French Onion Grilled Cheese | Mountain Cravings

This idea has been bouncing around my head ever since Joy made these a few years ago, and I swear I’ve been drooling since. They are so rich, so indulgent, but practically healthy as far as sandwiches go!

French Onion Grilled Cheese | Mountain Cravings

One onion per person shouldn’t scare you at all – first of all, because we are Kitchen Fearless, but also because they reduce down to nothing through caramelization. If you’ve caramelized onions with me before, you know the magic of whiskey in deglazing all those good burned bits on the bottom of the pan – that’s where the flavor is.

French Onion Grilled Cheese
Prep time
Cook time
Total time
Serves: 2 sandwiches
  • 2 T. butter
  • 1 T. oil
  • 2 large yellow onions, sliced
  • 2 T. whiskey or bourbon
  • salt & pepper to taste
  • 4 slices fresh bread
  • 2 T. mayonnaise
  • ½ cup gruyere, shredded (or more, more is good)
Caramelizing the Onions
  1. Melt butter & oil in a large cast iron skillet over medium heat.
  2. Add the onions. Stir every 5 minutes or so, making sure to scrape up all the good stuff on the bottom of the pan, until onions are completely brown. Reduce the heat if ends begin to blacken.
  3. When the onions are a dark, rich brown, deglaze the skillet with whiskey and scrape the bottom until liquid has evaporated. Season with salt & pepper to taste and set aside.
Making the Sandwich
  1. Spread mayo on the outside of one slice. Top with a quarter of the cheese, half the onions, another quarter of the cheese, and another slice of bread with mayo on the top. Repeat for the second sandwich.
  2. Grill sandwiches over medium heat in a large pan until bottoms are golden brown. Flip and grill until other side is golden and cheese is melted.
Adapted from Joy the Baker.

Nutrition Facts
2 servings per container
Serving size 1 sandwich

Amount per serving
Calories 377
% Daily Value*
Total Fat 17g 22%
Saturated Fat 8g 40%
Trans Fat 0g
Cholesterol 60mg 20%
Sodium 656mg 29%
Total Carbohydrate 32g 11%
Dietary Fiber 3g 10%
Total Sugars 6g
Includes 0g Added Sugars 0%
Protein 13g

Vitamin D mcg 0%
Potassium mg 0%
Not a significant source of calcium, or iron.

The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

2 thoughts on “French Onion Grilled Cheese”

  • After you deglaze the skillet and the liquid evaporates, do you remove the residue and put it in the onion mixture? Or do you leave it in the skillet and grill the sandwich in it?

    • Deglaze the skillet with the onions still in there! They’ll soak up the rich whiskey flavor and the good brown bits will stick right to them.

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