Ive asked a lot of people who have vaporizers, and not many people know to save the vapored ground up buds to cook with. Save up about an ounce and a half or two ounces of the leftover vape matter and turn it into butter. What I do is mix it with a few cups of water and however much butter my cookie recipe calls for, plus a little more to make up for whatever butter is lost during straining. I then simmer this semi-covered for a good 3-4 hours smashing and stirring frequently. Afterwards, I strain everything through a cheesecloth, pouring more boiling hot water through to make sure everything is strained. I also squeeze the crap out of the cheesecloth afterwards. Then, I put the strained liquid into the freezer to quickly solidify the butter (the thc filled butter will solidify on top of the water). When the butter is solid, poke a hole in it and pour out the nasty brown water in the bottom, and you should have a nice green butter patty to cook with. The cookies I have made using this method are by far the strongest edibles I have ever eaten, and I have tons of friends who have eaten them and said that just one cookie is too much to handle.