Can i make canna butter just by bioling butter and adding hash?

I ran out of trims bud i got a gank of pressed hash and was wondering What ammount of hash vs butter should i add?

I made these chewy carmels recently...http://oldrecipebook.com/caramels.shtml ..... The first step calls for melting butter so I just threw 5 grams of unpressed bubble hash in with the butter and cooked in a double boiler for 40 min before I proceeded with the rest of the recipe... That recipe is big though, adjust it to the size of batch you want... The whole recipe makes like 64 carmels, and with 5 grams of bubble spread in the mix they make for quite the evening treat!