Vigil with the blessing of bread, wheat, oil and wine.
An old Russian tradition, whose roots are in the Orthodox faith, is the Christmas Eve fast and meal. The fast, typically, lasts until after the evening worship service or until the first star appears. The dinner that follows is very much a celebration, although, meat is not permitted. Kutya (kutia), a type of porridge, is the primary dish. It is very symbolic with its ingredients being various grains for hope and honey and poppy seed for happiness and peace.
Read more about Russian Christmas at:http://russian-crafts.com/customs/christmas.html