1kg sugar (should be common refined sugar, if you want cane sugar, make sure its crystals are as small as possible)
2kg butter (good butter that tastes good, because this is what the final Butterplätzchen is going to taste like)
3kg flour (finely ground wheat or spelt flour, just make sure it has proper gluten-properties)
4 medium-sized eggs (these make sure the dough will be rollable)
10-20g salt (depending on the strength of your salt)
A healthy amount of fresh vanilla mark (you can also mix up the entire vanilla bean together with the sugar)