This dessert is not pudding in the American sense of the word, but in the British sense—meaning dessert. The bright orange zest, warm spices, and dried fruit in this rich, moist, dense steamed cake bring all of the holiday feels to the table. The hard sauce that accompanies it is basically brandy butter. When you dollop it on top, it slowly melts into the warm cake, infusing the pudding with the richness of the butter, the sweetness of the sugar, and the warmth from the brandy. Serve this with a cup of tea or a glass of brandy or sherry.