INGREDIENTS
1/2 tsp
Garlic powder
1/2 tsp
Mustard powder, ground
8 oz
Sturdy macaroni noodles *see note
1/3 cup
All purpose flour
1/4 tsp
Cayenne pepper
3/4 tsp
Salt
1
Salt and pepper
1/3 cup
Butter, unsalted
1 1/2 cups
Cheddar cheese *see note, packed sharp aged
1/2 cup
Pecorino romano cheese
2 cups
Whole milk