as stonefly pointed out, you do NOT absolutely have to heat it for it to work, it will just take much longer for the desired effects.

here's something i made on wednesday that got me the most stoned i have ever been, after about 6 or 7 years of smoking...

grind up finely however much ganja you want to use ( i used 2 grams of really good pot and got incredibly stoned for a very long time)...

get some nutella or peanut butter and spread it on a cracker or triscuit or flat cookie...sprinkle the ganja on that and kind of mix it in.

bake on 350 for about 20 minutes, let cool. then eat. it took about an hour for me to start feeling it and then another hour or 2 to really kick in.

i ate 2 grams and got incredibly stoned. it reminded me a lot of the first time i ever got stoned, at first. then it just got more and more and more intense and i could actually feel myself getting more stoned by the minute, almost to the point of uncomfortable. so i'd recommend less than to begin with.

you can get a lot more out of a gram of pot by eating it, and it lasts longer. i'd say if you had a gram and were just going to roll a joint, eat most of it, and save a little bit to smoke. even though the entire time on wednesday, i think i took 2 or 3 puffs.