French Onion Grilled Cheese from the Sandwich King
Transform your traditional grilled cheese into a gourmet masterpiece with the Sandwich King’s irresistible French Onion Grilled Cheese. This recipe combines golden, caramelized onions infused with thyme and a hint of white wine deglaze with creamy, nutty Gruyère cheese for an elevated take on comfort food. Sandwiched between thick slices of rustic sourdough bread and toasted to golden perfection in butter, this luscious creation delivers flavors reminiscent of classic French onion soup in every melty bite. Perfect for lunch, dinner, or a decadent snack, this grilled cheese is the ultimate fusion of rich, savory ingredients. Serve it alongside a crisp green salad or bowl of tomato soup for a truly satisfying meal.
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Recipe Information
Ingredients
- 4 tablespoons Unsalted butter
- 2 large Yellow onions
- 3 sprigs Fresh thyme
- 0.5 teaspoons Salt
- 0.25 teaspoons Black pepper
- 0.5 teaspoons Sugar
- 0.25 cups Dry white wine
- 8 ounces Gruyère cheese
- 8 slices Bread, thick slices (sourdough or rustic loaf)
- 2 tablespoons Olive oil
Instructions
Peel and thinly slice the yellow onions.
In a large skillet over medium heat, melt 2 tablespoons of butter and the olive oil. Add the sliced onions, thyme sprigs, salt, black pepper, and sugar.
Cook the onions for about 25-30 minutes, stirring frequently, until deeply caramelized and golden brown. Adjust heat as necessary to avoid burning.
Once caramelized, remove and discard the thyme sprigs. Add the white wine to the skillet, scraping the bottom of the pan to deglaze. Cook until the wine has evaporated, about 2-3 minutes. Remove onions from heat and set aside.
Grate the Gruyère cheese and divide it evenly among 4 slices of bread. Top the cheese with the caramelized onions, then place the remaining bread slices on top to form sandwiches.
Heat a large skillet or griddle over medium heat. Add 1 tablespoon of butter to the pan and let it melt.
Place the sandwiches in the skillet (work in batches if necessary) and cook for 3-4 minutes per side, pressing gently with a spatula, until the bread is golden and the cheese is melted. Add the remaining butter to the skillet as needed when flipping sides.
Once all sandwiches are toasted and melted, remove them from the skillet and let them rest briefly. Slice in half and serve immediately.
Nutrition Facts
Calories |
3177 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 161.3 g | 207% | |
| Saturated Fat | 77.6 g | 388% | |
| Polyunsaturated Fat | 6.6 g | ||
| Cholesterol | 374 mg | 125% | |
| Sodium | 6012 mg | 261% | |
| Total Carbohydrate | 293.5 g | 107% | |
| Dietary Fiber | 16.4 g | 59% | |
| Total Sugars | 11.5 g | ||
| Protein | 116.2 g | 232% | |
| Vitamin D | 1.4 mcg | 7% | |
| Calcium | 2482 mg | 191% | |
| Iron | 13.1 mg | 73% | |
| Potassium | 815 mg | 17% | |
*The % Daily Value 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.
