Right a bit of maths and im confused. I have a block of 250g of butter. How much hash shall I add to all of it? I have a recipe i want to make for cookies which will use 100g of the butter but i dont know how much hash to use in the butter. I want to be able to make the biscuits and for say 5 people to get stoned. So, i worked out that people will be eating 20g of the butter each in theory the correct amount of hash overall would be the right amount of hash for 1 person (20g butter) multiplied by 15 to get 250g. I would really appreciate it guys if you could please spend just a couple of mins helping me out here. It has been confusing me for ages!