Iced Christmas-pudding mousse

So I've been doing a Christmas Calendar of Christmasy Foods.

Ingredients:

450g Christmas pudding (roughly chopped into small pieces)
500g carton ready-made custard
142ml carton double cream
25g caster or icing sugar
4-6 tangerines or satsumas (peeled)
300ml orange juice
100g caster sugar

Serves: 6

Instructions

Combine the Chopped Pudding and Custard (in a food processor).

Whip the Cream and Sugar until it creates soft peaks.

Ass the Custard mixture.

Pour into 2 pint pudding basins.

Cover and freeze overnight or several hours (can remain frozen for up to 1 month).

Peel the Tangerines/Satsumas.

Chop to release the segments.

Boil the combined Orange juice and Sugar, until the sugar dissolves (stir from time to time).

Boil for a further 20-25 minutes until thick and syrupy consistency.

Set aside to cool.

Transfer from the fridge 30 minutes before serving.

Dip the basin into hot water and turn out onto pre-warmed plate.

Serve with arranged fruit segments and drizzled syrup.