firecrackers are definitely the way to go. in my opinion the high is far superior to any other way of eating it. i personally feel like its a much clearer, more energetic high.
the way i cook em is like this:
1) use any kind of cracker (graham, saltine, whatever). 2 crackers makes 1 firecracker
2) use ALL NATURAL/ORGANIC PEANUT BUTTER. the oils in the regular stuff don't bind to the THC as good. you can also use nutella but in my opinion all natural/organic peanut butter is the best
3) sprinkle on as much green as you want. anything from .25 grams to a gram will work, just depends on how stoned you wanna be
4) wrap them in aluminum foil. this is important. it'll help prevent your kitchen from filling with smoke, and in my experience adding the foil makes for a better high
5) heat as many as you want on a cookie tray on 325 degrees for anywhere from 22-25 min. my personal time is 23
after they're done, you know what to do
lastly, i find that eating a meal after the cracker helps get you much higher. i think it has something to do with kicking your body into digestive mode.