Instructions

  1. Melt butter over moderately-low heat, stir in flour and cook 3 minutes.
  2. Remove from heat and whisk in hot milk.
  3. Return pan to heat, bring to a boil, whisking, for 10 minutes.
  4. Remove from heat and stir in nutmeg, ¾ tsp of salt and ¼ tsp of pepper.
  5. In a small bowl, combine 1 cup of the Gruyere, ½ cup of the Fontina and ½ cup of the Parmesan; whisk cheese into the sauce, ½ cup at a time, until cheese is melted.
  6. Season to taste.
  7. Preheat oven to 390 degrees F.
  8. Boil ziti until al dente.
  9. Drain well and turn into a buttered 13 x 9 x 2 inch pyrex baking dish.
  10. Season with remaining ¼ tsp salt and ¼ tsp pepper.
  11. Pour sauce over and combine.
  12. Sprinkle remaining ½ cup Gruyere, ½ cup Parmesan, 1 ½ cups Fontina and all of the mozzarella.
  13. Bake for 20 minutes, or until pale golden-brown.