My latest fav is fridge tart. very easy to make, but you need to plan in advance as it needs to stand in the fridge for a few hours.
You take what we call tennis biscuits (basicaly thin coconut biscuits) And put down a layer in a large flat dish.
Now for the realy hard part, boil a kettle of water and pour one cup full in a mixing bowl
add a packet of strawberry jelly (you guys call it jello over there, crazy yanks)
Stir it till jelly disolves.
Now add a whole can of condenced milk. Yup it will be sweet as hell if you try and taste it now, but that will disapear in a few hours.
Add one 500ml strawberry yoghurt (the sourness of the yoghurt cancels out the sweet of the condenced milk)
Stir up the stuff and pour it over your biscuits, and crumb a few biscuits over it to make it look pretty.
Now stick it in the fridge and wait some hours for it to solidify.
Its fucking awesome stuff when you are stoned.
Nice and cold to soothe the throat.