Ultimate Mushroom Grilled Cheese Recipe - Recipes by Clare

Ingredients

• 1 tablespoon butter
• 1 tablespoon olive oil
• 8 ounces cremini mushrooms, sliced
• 1 small onion, sliced
• 1 clove garlic, chopped
• 1 teaspoon fresh thyme, chopped
• 1/4 cup white wine or broth
• 1 tablespoon fresh parsley, chopped
• 1/2 teaspoon truffle oil (optional)
• 1 cup fontina cheese, shredded
• 1/4 cup parmigiano reggiano, grated
• 2 tablespoons salted butter, room temperature
• 4 slices bread