Ingredients

1 pound elbow macaroni

4 tablespoons butter

3 tablespoons all-purpose flour

2 cups whole milk

1 teaspoon dry mustard powder

1/2 teaspoon garlic powder

1/2 teaspoon onion powder

1/4 teaspoon cayenne pepper

8 ounces sharp cheddar cheese, grated

8 ounces Monterey Jack cheese, grated

Salt and freshly ground black pepper to taste