Croque Monsieur
Ingredients:
6 tbsp stick unsalted butter
2 tbsp all-purpose flour
1 1/2 cup milk
3 tbsp whole grain mustard mustard
½ tsp nutmeg
2 slices of bread, sliced thin
3-4 slices of ham
3 oz gruyere, grated
1-2 oz grated parmesan
dill sprigs (for bechamel and garnish)
salt and pepper
Steps:
Preheat oven to 400’ F. Melt butter in a medium saucepan over medium heat until foamy. Add in flour and cook, stirring constantly for about 3 minutes, until foamy and raw flour flavor is gone. Whiskin milk and add a couple of dill sprigs. Continue whisking until the sauce is thick (3-5 minutes). Remove from the heat and whisk in 2 tbsp of mustard and nutmeg. Season with salt.
Line a ¼ sheet pan with parchment paper and lay 2 slices of bread on it. Butter the tops of both slices of bread with remaining butter. On one of the slices, layer your ham, a nice slathering of bechamel (end to end coverage) and gruyere. On the other slice, spread the remaining mustard.
Close the sandwich (butter/mustard side down) and slather the top with more bechamel (end to end). Grate some parmesan on top of that, season with pepper and garnish with dill sprigs
Bake in the over for about 15 minutes or until the top is nicely browned.