Croque-Madame

Ingredients

• 3 tablespoons all-purpose flour
• ¹/₈ teaspoon black pepper
• 5 tablespoons unsalted butter
• ¹/₈ teaspoon freshly grated nutmeg
• 4 large eggs
• 4 teaspoons Dijon mustard
• ¼ teaspoon salt
• + 4 more ingredients
• • 2 cups whole milk
  • 8 slices firm white sandwich bread
  • ½ pound thinly sliced cooked ham (preferably Black Forest)
  • 3 ½ ounces coarsely grated Gruyère cheese

Melt 3 tablespoons butter in a 1- to 1 1/2-quart heavy saucepan over moderately low heat, then whisk in flour and cook roux, whisking, 3 minutes. Whisk in milk and bring to a boil, whisking constantly. Reduce heat and simmer, whisking occasionally, 5 minutes. Whisk in salt, pepper, nutmeg, and 1/...

View full recipe at Epicurious