Bring plenty of water to a boil in a large pot and add salt generously.

Boil pasta 2 minutes short of the time stated on the package.

While the pasta is boiling, scald milk in a small pot.

Add garlic granules (if using), cheese slices, and butter to the scalded milk.

Turn off the heat and allow the cheese to melt while the pasta cooks.

When the pasta is nearly done, whisk the melted cheese into the milk until blended.

Drain the cooked pasta and immediately return it to the pot.

Add the hot milk/cheese mixture to the pasta and stir to coat.

Cover the pasta and allow it to sit in the mixture for 10 minutes.

Stir again to coat, ensuring most of the sauce has been absorbed by the pasta.

Serve the macaroni and cheese immediately.