There's different ways you can do it to be fair, but I used to dice the chicken the night before, season and then leave in the fridge overnight and fry or roast the next day (seasoned stuff is usually tastier when left for a day cos the flavour sinks in). Some people boil or stew the meat, I did that with lamb or chicken curry but with jerk it would lose its flavour when I tried it.
Saz, jerk isn't too hot woman! It's lush! You can add sauces to make it take your head off if you want
With rice and peas, I just did basmati rice, garden peas, sweetcorn and kidney beans and use the stock from the chicken to make the gravy, couldn't be bothered trekkin to a West Indian food shop for the right stuff The only West Indian thing I couldn't eat was curried goat. I had it at a carnival years ago and was sick for days afterwards, it's vile