And so I came upon some recipes and a video with easy-to-follow instructions. There are many versions and you can use it in a bunch of recipes.
So here it goes:
1. Bring 8 cups of milk to a boil (you're supposed to use whole-fat milk). I added a bit of fleur de sel.
4. Transfer to a thin wet cloth, adjusted over a colander on top of a bowl.
Do save the whey as it is said to be very healthy! Use it as a stock for soup or a gravy.