Active Time

　　20 min

　　Total Time

　　25 min

　　Though this famous pub dish—usually made with Cheddar—is known for its lack of meat, a slice of high-quality ham adds another layer of deliciousness.

　　

Ingredients

Makes 4 (main course) servings

　　1 pound thinly sliced ham

　　2 tablespoons unsalted butter

　　2 tablespoons all-purpose flour

　　3/4 cup whole milk

　　2 teaspoons dry mustard

　　3/4 cup beer (not dark)

　　6 ounces coarsely grated Gruyère (2 cups)

　　4 oval slices pumpernickel or rye bread

　　Garnish: cornichons or gherkins

　　

Step 1

Preheat broiler. Wrap ham tightly in foil and put on rack of oven farthest from broiler to heat through, about 15 minutes.

　　

Step 2

Meanwhile, melt butter in a heavy medium saucepan over medium-low heat until foam subsides, then whisk in flour and cook, whisking, 1 minute. Whisk in milk, mustard, and 1/4 teaspoon pepper and bring to a boil over medium heat, whisking. Simmer, whisking, 2 minutes, then add beer and simmer, whisking, 1 minute. Remove from heat and whisk in cheese until melted.

　　

Step 3

Arrange bread in 1 layer on a baking sheet and broil 4 to 5 inches from heat, turning once, until lightly toasted, about 5 minutes total.

　　

Step 4

Transfer bread to plates and spoon some of sauce over it, then top with ham and remaining sauce.