Cannaoil works great and if you break out the crockpot and a cannabis/coffee grinder to make it into a fine powder first, all you really have to do is put it in the crockpot for 2-3 hours and you'll have a fabulous oil to cook with IMO.

I have never tried cannabutter but am planning to use an oz or two of MK to make some either this weekend or next. I'll do a quick thread with lotsa PICS when I whip up some cannabutter....