Wikipedia
Risalamande (also spelled as ris à l'amande and other variants, though risalamande is the only spelling authorized by Dansk Sprognævn; from pseudo- French riz à l'amande meaning "rice in the style with almonds"), is a traditional Danish dessert typically served at Christmas.
Risalamande was created in the last part of the 19th century. It is made out of rice pudding mixed with whipped cream, vanilla, and chopped almonds; and is usually served cold with a cherry sauce (kirsebærsovs).
It gained popularity when rice pudding became more common. Until then rice pudding had been a very exclusive dish, as making it required two expensive, imported ingredients: rice and cinnamon. After World War II, risalamande experienced an increase in popularity, being touted as a "savings" dessert: adding whipped cream (which was easily available) to the still fairly expensive rice would make the rice last longer. In order to minimize costs, risalamande was frequently made without almonds during this time, too.
A similar traditional Danish Christmas dish, risengrød, is essentially risalamande before the whipped cream, vanilla, and almonds have been added, and is typically served hot, topped with cinnamon and butter.
Nowadays, it is very common to make a large batch of rice pudding for dinner on lillejuleaften ("Little Christmas Eve", i.e. December 23), a part of which is kept until Christmas Eve and used to make risalamande, which is eaten as dessert after the big Christmas dinner.
Normally, a whole almond is added to the dessert, and the person who finds it wins a small prize — such as a chocolate heart, a marzipan pig, or a small board game. Part of the game involves the finder concealing their discovery as long as possible, so that the rest of the company is forced to eat the entire dish of risalamande, even after they have already devoured a large Christmas dinner.