Ingredients
Method
- Boil the macaroni in salted water until just tender, reserve 1/2 cup pasta water, and drain.
- Melt the butter in a saucepan, whisk in the flour, and cook for 1 minute until smooth.
- Whisk in the milk gradually and simmer for 4 minutes until it coats a spoon.
- Take the pan off the heat and stir in the cheddar, Monterey Jack, salt and mustard until smooth, adding reserved water if needed.
- Spoon the sauce into shallow bowls and mound the hot macaroni on top so each diner can stir it together.