Instaed of adding oil/water to the mix you add the hash oil you've made. You just melt the butter with finely chopped pot and once that all extracted pour it into the mix instead of the oil. Just get it hot enough until the butter is boiling. Add the pot to in and watch it you dont wanna burn all the THC up so keep an eye on it. Once it turns brown its done. Get as much as you can by pressing it .