Indulge in the ultimate comfort food with this gourmet grilled cheese featuring Gouda, roasted mushrooms, and caramelized onions! This delicious recipe takes a classic sandwich to new heights, providing simple steps for perfecting the melt and flavor. Discover the essential ingredients and expert tips that make all the difference. Ready to elevate your lunch game? Click through to explore the full recipe and make this scrumptious sandwich today!
4 slices of thick sourdough bread
1 cup Gouda cheese, grated
1 cup mushrooms (such as cremini or shiitake), sliced
1 medium onion, thinly sliced
2 tablespoons unsalted butter
1 tablespoon olive oil
1 teaspoon fresh thyme leaves (or 1/2 teaspoon dried thyme)
Salt and pepper to taste
Optional: 1 teaspoon balsamic vinegar for extra flavor