Holy Supper is a tradition of Slavic Orthodox Christians in central Europe and the western parts of Russia. It apparently is a practice introduced from Italy.
Holy Supper is a traditional lenten meal on the Eve of the Nativity of Our Lord (Christmas Eve). Since Christmas is preceded by forty days of fasting, the Holy Supper is the last meal of the fast. The twelve fasting foods usually served are: barley, honey, stewed prunes, pierogi, sauerkraut, potatoes, lima beans, garlic, Lenten bread, mushroom soup and salt. The meal begins with the singing of the Christmas troparion (a hymn) and the lighting of a candle placed in the center of the table. The candle symbolizes the star of Bethlehem.
The bread is then broken by the father of the house and given to everyone present. This symbolizes Christ at the Last Supper. The foods range from bitter to sweet to remind us of the bitterness of life before Christ was born and the sweetness of life which comes after His birth. The number 12 symbolizes the twelve apostles. When the meal is finished all attend the Christmas Eve vigil.