Discover the art of the Ultimate Grilled Cheese Sandwich with this gourmet recipe that takes a classic comfort food to new heights. This sandwich features a harmonious blend of sharp cheddar, nutty Gruyère, and tangy feta cheese, all nestled between artisan sourdough. With tips on ingredient selection and grilling techniques, you'll achieve a perfectly crispy crust and gooey interior every time. Elevate your grilled cheese game and indulge in a delightful culinary experience that’s sure to impress!
4 slices of sourdough bread
2 tablespoons unsalted butter, softened
1 tablespoon mayonnaise
1 cup shredded sharp cheddar cheese
1 cup shredded Gruyère cheese
1/2 cup crumbled feta cheese
1 tablespoon fresh thyme leaves (or 1 teaspoon dried thyme)
1/2 teaspoon garlic powder
Salt and pepper to taste
1/4 cup caramelized onions (optional)
1 tablespoon Dijon mustard (optional)