Elevate your grilled cheese with this gourmet French onion twist. Caramelized onions and rich Gruyere cheese create a decadent sandwich that’s both comforting and sophisticated.
Author:Jun Spoon
Prep Time:10 minutes
Cook Time:40 minutes
Total Time:50 minutes
Yield:2 servings
Category:Sandwich
Method:Grilling
Cuisine:American
Diet:Vegetarian
Ingredients
Scale
1 tablespoon olive oil
2 large yellow onions, thinly sliced
1 teaspoon sugar
1/4 teaspoon salt
1/4 teaspoon black pepper
1 cup beef broth
2 tablespoons unsalted butter, softened
4 slices of sturdy bread (like sourdough or challah)
1 1/2 cups shredded Gruyere cheese
1/4 cup shredded Swiss cheese
Instructions
Heat olive oil in a large skillet over medium heat. Add sliced onions, sugar, salt, and pepper. Cook, stirring occasionally, until onions are deeply caramelized and golden brown, about 25-30 minutes.
Pour in the beef broth and scrape up any browned bits from the bottom of the pan. Simmer until the liquid has mostly evaporated, about 5-7 minutes. Remove from heat and set aside.
Butter one side of each slice of bread.
Place two slices of bread, butter-side down, in a clean skillet over medium-low heat.
Layer half of the Gruyere cheese and half of the Swiss cheese on each slice of bread.
Spoon half of the caramelized onion mixture over the cheese on each sandwich.
Top with the remaining Gruyere and Swiss cheese.
Place the other two slices of bread on top, butter-side up.
Grill for 3-5 minutes per side, or until the bread is golden brown and the cheese is melted and gooey.
Slice in half and serve immediately.
Notes
For an even richer flavor, you can deglaze the pan with a splash of dry sherry or red wine before adding the beef broth.
If you don’t have beef broth, a vegetable broth or even water can be used, though the flavor will be less intense.
Ensure your heat is medium-low when grilling to avoid burning the bread before the cheese melts.