Cook pasta in boiling salt water (I like to add some olive oil to the water, about half a tablespoon) until al dente. (About 8-10 minutes) I usually do it a little longer. It can also be any noodles you want.

Drain the pasta water. You can save 1/4 of the pasta water if youd like, but if youre adding the olive oil to the water that may make it too watery.

Add the butter to the warm pot, then add noodles and gently mix until butter is melted. (its best to use your judgment on this one, I love butter so I generally add more).

Add the parmesan cheese (it doesnt have to be freshley grated either, the first time I made this I only had the type you put on pizza, still truned out great!)

Add the water if you think it needs it, then add the kosher salt and black pepper for seasoning and also the parsley.