I came across this recipe in Best's 'Just For Kids' recipe collection, however I changed the make up slightly as I thought is was a bit fiddly.
1 Orange Jelly, cut into squares
375ml Orange Juice
1 x 10in Sponge Base
275g Plain Chocolate
350ml Double Cream
Heat 150ml orange juice until boiling and use to dissolve jelly, add remaining juice. Leave to cool and partially set for a few hours - jelly should be quite thick but not completely set.
Spread jelly onto the sponge flan case and refrigerate until set.
Break chocolate into a bowl and add half the cream. Set over a bowl of hot water and stir until dissolved. Leave to cool.
Whip remaining cream until it forms soft peaks and fold into chocolate mixture. Refrigerate until set.