The best way I've found to make brownies is to use a crock pot with a 'warm' setting. Use canola or olive oil, about 5 ounces of oil per quarter ounce of pot. (I usually use 2.5 to 3 ounces of good buds or quality popcorn buds, with a 48 ounce bottle of oil, which makes enough for around 11 pans of brownies.)

Cook on WARM (not low, that's too hot) for 7 hours, striring vigorously every hour or so, then strain out the plant matter with cheesecloth, then use the resulting oil as you would with normal oil, along with a brownie mix that takes 1/2 cup of oil. I've been using this method for two years now and the only time I've ever screwed up was I once put the crockpot on low instead of warm, which wasted 3 ounces of pot, overcooked it. Live and learn. Never made that mistake again though, and every pan of brownies is dynamite. I eat two more or less every evening, while the woman has one.