What is the traditional dessert in England on 25 of December?

There isn't a single "traditional" dessert in England on Christmas Day (25th December). It's more about a range of popular options, with some being more regional than others. Here are some of the most common:

* Christmas Pudding: A rich, dark fruit pudding made with dried fruits, spices, and suet, traditionally steamed and served with brandy butter or custard. It's often a centerpiece of the Christmas meal.

* Mince Pies: Small individual pies filled with a mixture of chopped fruits, spices, and brandy, traditionally enjoyed throughout the festive season.

* Christmas Cake: A fruit cake, often decorated with marzipan and icing, and sometimes featuring Christmas motifs.

* Trifle: A layered dessert with sponge cake, custard, fruit, and whipped cream.

* Yule Log: A sponge cake rolled and decorated to resemble a log, often with chocolate buttercream and meringue mushrooms.

Ultimately, the choice of dessert on Christmas Day is a matter of personal preference and family tradition.