"In this rich and hearty dish, bread, ham and cheese are baked in an eggy custard; grainy mustard and tarragon add a lovely, vibrant flavor...."
INGREDIENTS
•
Softened butter
•
1 loaf (1 1/4-pound; about 18 slices) bakery white bread, crusts removed, bread sliced
•
1/4 cup grainy mustard
•
1 pound Virginia ham, thinly sliced
•
2 tablespoons tarragon, chopped, plus more for garnish
•
3/4 pound (3 cups) Gruyère cheese, coarsely shredded
•
3 cups milk
•
4 (large) eggs
•
Freshly ground black pepper