Step 1

Cook the pasta in salted water as instructed on the package. Don't overcook it; nobody likes mushy mac and cheese.

Step 2

Drain the pasta and add the butter stirring until completely melted. Cover until ready to add to the sauce.

Step 3

Whisk together 6 ounces of the milk, the eggs, salt, pepper and dry mustard. Add 2 portions of the cheese, then add this mixture to the pasta and butter.

Step 4

Cook over low heat stirring constantly until the cheese melts, then quickly add the remaining milk, stirring until smooth.

Step 5

Add the other two portions of cheese one at a time, stirring constantly until the cheese is completely melted. Serve immediately.