Ingredients
16 thin slices rustic bread (toasted if desired)
3 tablespoons unsalted butter, room temperature
8 ounces extra-sharp cheddar cheese, thinly sliced
8 ounces thinly sliced prosciutto
3 tablespoons grainy mustard
Preparation
Spread 8 slices bread with butter. Top with cheese and prosciutto. Spread remaining 8 slices bread with mustard, and sandwich together.
