It resembles koliva from Serbia or Romania (used usually for funerals), but the latter is mixed only with walnuts, sugar and raisins.
Kutia was also part of a common Eastern Orthodox tradition in the Russian Empire, which has become virtually extinct in Russia as a result of the official atheism of the former Soviet Union. Radonitsa is one such holiday on which it may be served. To this day kutia is served at funerals across Russia as a dish of remembrance.
Nowadays other ingredients (which were unavailable or just too expensive in earlier centuries) like almonds and pieces of oranges are added. In some places (like Poland and western Canada), unprocessed wheat grain for kutia is easily available in stores. In others, where it is harder to find, it can be replaced by other similar grains like barley.