Boil Pasta Cook 1 lb of Creamette elbow macaroni in salted boiling water for 6–7 minutes. Drain and set aside.
Make the Sauce In a saucepan, melt 4 Tbsp butter. Stir in 4 Tbsp flour and cook for 2 minutes. Slowly whisk in 4 cups warm milk until smooth and thick.
Add Cheese Turn off heat. Stir in 2 cups shredded cheddar and 1 cup shredded Monterey Jack. Add salt, pepper, mustard powder, and paprika. Mix until creamy.
Combine with Pasta Add the cooked pasta to the cheese sauce. Stir well to coat. Serve hot.
Optional – Bake It Pour into a baking dish. Top with buttered breadcrumbs and grated Parmesan. Bake at 375°F (190°C) for 20–25 minutes until golden.