Name: Croque Monsieur
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Yield: 4 servings
Cuisine: french
Ingredients: 4 tbsp unsalted butter (divided); 2 tbsp all-purpose flour; 1 cup whole milk (warmed); 1 pinch ground nutmeg (freshly grated is best); 0.5 tsp salt; 0.25 tsp black pepper (freshly ground); 1.5 cup gruyère cheese (shredded, divided); 8 slice thick-cut white bread (Pain de mie or brioche recommended); 4 tbsp dijon mustard; 8 slice cooked ham (thinly sliced, about 8 oz)