Afterwards, they dress up in clean clothes for the Christmas dinner or joulupöytä, which is usually served between 5pm and 7pm, or traditionally with the appearance of the first star in the sky. The most traditional dish of the Finnish Christmas dinner is probably Christmas Ham, roast suckling pig or a roasted fresh ham, but some may prefer alternatives like turkey. Several sorts of casseroles, like rutabaga, carrot and potato casserole are traditional, and are almost always exclusively served on Christmas. Other traditional Christmas dishes include boiled codfish (soaked beforehand in a lye solution for a week to soften it) served snowy white and fluffy, pickled herring and vegetables. Prune jam pastries, plum or mixed fruit soup, rice porridge with cinnamon, sugar and cold milk, and sweets like chocolate are popular desserts. Christmas gifts are usually exchanged after Christmas Eve dinner. Children do not hang up stockings in Finland but "Joulupukki" visits the household, maybe with a "tonttu" to help him distribute the presents.