Croque Monsieur Tart

• Dijon Bechamel
• 2 tablespoons butter
• 2 tablespoons flour
• 2 cups milk
• 1 pinch freshly grated nutmeg
• 2-3 tablespoons strong Dijon mustard
• salt to taste
• Everything Else
• 1 sheet puff pastry, defrosted
• 2 tablespoons milk
• 1/4 pound sliced ham
• 6 ounces Gruyere, grated

1. Preheat oven to 400 degrees.
2. Melt butter in a saucepan, whisk in flour and cook for a few minutes to remove the raw flour taste, it should foam up a bit. Whisk in milk and continue stirring until it thickens and comes to a boil. Stir in nutmeg, mustard and salt to taste. Remove from heat to cool.
3. Lightly roll out puff pastry, just to make an even thickness. Place on a cookie sheet and brush edges with milk. Spoon bechamel onto the pastry, leaving a 1/2 inch border. Top with ham and then grated cheese. Bake until golden brown, puffy and crisp on the bottom, begin checking after 25 minutes. Allow to rest for a few minutes before cutting into squares, it will deflate so don't be alarmed. This is great served with a arugula salad to balance the richness.

buechamel, butter, flour, milk, nutmeg, mustard, salt, pastry, milk, ham, gruyere

Taken from food52.com/recipes/10014-croque-monsieur-tart (may not work)