This is a great alternative to a traditional Yule log or at any special occasion. It's easy to make and you just have to prepare it ahead of time to allow time for freezing. Decorate it however festive you wish.
Spread half of the blackcurrant sorbet in a loaf tin lined with cling film. Make a well in the middle along the length of the sorbet using a spoon. Spread the passion fruit sorbet in the middle, then top with more blackcurrant sorbet.
Melt chocolate in a double boiler, then spread over the blackcurrent sorbet. Freeze for at least 4 hours.
An hour before serving, turn out Yule log onto a serving plate. Soften the apple jam in a small bowl in the microwave for 10 seconds. Brush over Yule log. Freeze until ready to serve.