INGREDIENTS
2 tbsp
unsalted butter
3 tbsp
all-purpose flour
2 cups
hot milk
1 tsp
kosher salt
1/2 tsp
freshly ground black pepper
nutmeg
12 oz
Gruyere, grated (5 cups)
1/2 cup
freshly grated Parmesan
8
croissants
Dijon
8 oz
honey ham, sliced but not paper thin