Fill in the Blanks Polish Christmas DinnerOnline version About Christmas in Poland by Julia Dmytryshyn 1 The 12 Dishes of Polish Christmas In , Christmas Eve dinner is the important celebration of the . Although this is reserved for the family , it is customary to set an plate and seat for an unexpected guest . Among others , the tradition requires that the can start only after the first appears in the sky . Usually , Polish Christmas Eve consists of 12 dishes . This number is a of wealth , the Apostles , and a of the 12 of the year . Most of the served are cooked for this day only once a year !