- 1 Cup grated fontina cheese
- 2 Cups grated sottocenere cheese, or other truffled cheese
- 20 slices white sandwich bread
- 20 very thin slices prosciutto
- 10 thinly sliced cremini mushrooms
- 1/3 Cup olive oil
Combine the cheeses and set aside. Lay 10 slices of bread out on a clean surface. Carefully fold 2 slices of prosciutto onto the bread, making sure that the prosciutto does not reach over the edge of the bread. Lay between 9 and 12 slices of mushrooms over the prosciutto in 1 layer, and top with ¼ cup of the cheese. Place a piece of bread on top of the sandwich and brush with about 1 teaspoon of olive oil. Heat a grill pan over medium heat and once hot, place 2 sandwiches, olive oil side down on the grill. Brush the exposed side of the sandwich with another teaspoon or so of olive oil. Use a grill press or another pan to weight the sandwiches. Cook the sandwiches for 2½ to 3 minutes, or until golden brown grill marks have formed and the cheese is beginning to melt. Turn to the other side and cook for another, 2½ to 3 minutes, or until crispy and the cheese is melted. Remove from the grill and cut in half diagonally. Continue to cook the remaining 8 sandwiches in the same manner.