I was always under the inpression that cakes, cookies whateva were made from leaf or at least thats what myself and all my friends have eber made them from.
You can make some hell potent stuff from just leaf and as we all know leaf is free or it bloddy well should be (unless your 13 then about $20 for about 3 grams of it)
I have made two very potent mixes from leaf the last on I made a cake out of two cake mixes together too make one very large cake. I didn't make the THC butter just added about a 4ltr icecream container of leaf, very finely chopped up (as small as a mix) The leaf was very quality though is was all the trimmings off the buds when a plant was ripped and all the trimmings were very sticky with resin.
The cake doesn't taste as bad as some of the previous ones I have tried, but definatly the most potent. Half a piece fucks me beautifly, a whole fucks me intencely.
Very cool stuff too take when you go out and hand around just make sure people can handle the potency.