A great basic mac n cheese recipe! I doubled it, but used less milk than directed (1L instead of 1.2L) and even more pasta (5oog instead of ~450g). Lots of commenters say the recipe is too salty, so I used unsalted butter and then just salted to taste. Didn't use parmesan, just mature cheddar (although it would definitely be nice to experiment with different cheeses). Added a little Nutmeg to the cheese sauce, and plenty of black pepper. Tastes lovely as is, but would also be a great base to experiment with. Lots of inspiration in the comments, like adding pepperoni, evaporated milk, garlic, and mustard.