INGREDIENTS
1 1/2 cups
grated extra-sharp cheddar
1 cup
grated Monterey Jack
1/2 cup
grated Parmesan or Gruyere
2 1/2 cups
milk
3 tbsp
unsalted butter, plus more for the dish
3 tbsp
all-purpose flour
1 tsp
ground mustard
1 tsp
kosher salt
1/4 tsp
minced garlic (optional)
1/4 tsp
freshly ground black pepper
1/8 tsp
freshly grated nutmeg
cayenne
1/2 lb
elbow macaroni
Hot sauce (optional)