Step by step

Method

19 steps

1. 1

   1. Preheat oven to 375°F.

2. 2

   Butter a 3-quart casserole dish; set aside.

3. 3

   Place the bread in a medium bowl.

4. 4

   In a small saucepan over medium heat, melt 2 tablespoons butter.

5. 5

   Pour the melted butter into the bowl with the bread, and toss.

6. 6

   Set the breadcrumbs aside.

7. 7

   2. Warm the milk in a medium saucepan over medium heat. Melt the remaining 6 tablespoons butter in a high-sided skillet over medium heat. When the butter bubbles, add the flour. Cook, stirring, 1 minute.

8. 8

   3. While whisking, slowly pour in the hot milk a little at a time to keep mixture smooth. Continue cooking, whisking constantly, until the mixture bubbles and becomes thick, 8 to 12 minutes.

9. 9

   4. Remove the pan from the heat. Stir in salt, nutmeg, black pepper, cayenne pepper, 3 cups cheddar cheese, and 1 1/2 cups Gruyère (or 1 cup Pecorino Romano); set the cheese sauce aside.

10. 10

    5.

11. 11

    Cover a large pot of salted water, and bring to a boil.

12. 12

    Cook the macaroni until the outside of pasta is cooked and the inside is underdone, 2 to 3 minutes.

13. 13

    Transfer the macaroni to a colander, rinse under cold running water, and drain well.

14. 14

    Stir the macaroni into the reserved cheese sauce.

15. 15

    6.

16. 16

    Pour the mixture into the prepared dish.

17. 17

    Sprinkle the remaining 1 1/2 cups cheddar cheese, 1/2 cup Gruyère (or 1/4 cup Pecorino Romano), and the breadcrumbs over the top.

18. 18

    Bake until golden brown, about 30 minutes (though we needed a bit more time to get it brown, but your oven may vary).

19. 19

    Transfer the dish to a wire rack for 5 minutes; serve.