Just buy it and open the bottle lol. I found a pre-made cannabis cooking oil called Cannola. The taste is much better and more mellow than cannabutter and it doesn't have to be kept cold or used right away. So far I've only made cupcakes with it, but they were perfect and you would never have any idea they contained thc... well, at least until they kick in after twenty minutes or so.
happy baking
happy baking