Start by mixing butter with flour. Rub in with your hands until it resembles fine bread crumbs. You can also use a k beater to do this.
Add egg yolks and salt and combine all together until dough starts to form.
Start adding water, little by little, until all flour is blended in and continue to knead to form a nice smooth dough. Transfer dough to a working top and continue to knead.. You know you’re ready, once the bowl is cleared and you don’t have any dough sticking to your hands!
Cover with cling film and let it rest in the fridge for 1 hr.