Iv mentioned on a similar post before about Jetboil, they are brilliant, boil a litre of water in under a minute, i cook soup, beans, hot dogs ect in mine too. Fantastic bi of kit binka.
JetBoil Zip Lightweight Cooking System | GO Outdoors
This is the one i have, but you can get a slightly bigger one, the gas is cheap and a big canister will last a good while too.
I'm surprised nicepicks has not been on here, quite a Kelly chef is that fellow.