This is a recipe from my childhood that my mum used to make. It is quite simple and one that children can make easily in the kitchen, obviously under strict supervision.
1 Jelly Mix flavoured either in the jelly squares or granular mix
Tin of Condensed milk or small container of cream
Make up the jelly as the packet requirements adding boiling water as required to whatever jelly mix you have chosen. Stir to make sure all is dissolved. Set in the fridge for a couple of hours. Check to see it is ok it should be set. Add half a large tin of evap milk and then beat up with an electric hand mixer or a hand whisk. The jelly mix will now go a creamy colour, Mix through thoroughly and put back in the fridge to set. Leave for another couple of hours at least when the mix should have re-set. Serve with fruit of your choice. Enjoy