Instructions

  1. Preheat oven to 400°F/200°C
  2. Prepare macaroni as directed on the package.
  3. Drain well, rinse and set aside.
  4. Place 2 TBS butter and the onion in a small saucepan .
  5. Cook over medium heat until tender, but not browned.
  6. Stir in the flour, salt, mustard and pepper.
  7. Cook 1 minute.
  8. Slowly stir in the milk and cook, stirring until smooth.
  9. Mix the cheeses together.
  10. Add about ¾ of the cheese, stirring until the cheese is melted.
  11. Taste and adjust seasonings as desired.
  12. Put the cooked macaroni into a greased 1 ½ litre casserole.
  13. Pour the cheese sauce over, tossing with a fork to coat all the macaroni.
  14. Top with the rest of the cheese.
  15. Melt the remaining 1 1/2 tablespoons of butter and mix together with the bread crumbs.
  16. Sprinkle evenly over the cheese.
  17. Bake, uncovered, 20 minutes, until lightly browned and bubbly.