Croque Monsieur Sandwich

• 4 slices thick white bread
• 4 slices high-quality ham
• 1 cup Gruyère cheese, grated
• 2 tbsp butter
• 1 tbsp all-purpose flour
• 3/4 cup milk
• 1 tsp Dijon mustard (optional)
• Pinch of ground nutmeg

Instructions

1. 1

   Gather and prepare all ingredients as specified in the ingredient list.

2. 2

   Make roux for béchamel.

3. 3

   Whisk in milk, thicken.

4. 4

   Season.

5. 5

   Assemble sandwiches with béchamel, ham, cheese.

6. 6

   Top with more béchamel and cheese.

7. 7

   Broil 3-5 mins until bubbly.