temple natto; year-end temple gift natto
Natto made by a Buddhist temple and traditionally given to parishioners or supporters at the end of the year. A cultural and religious practice, not a commercial product.
At the end of the year, parishioners receive temple natto from the temple.
Compound of 寺 (temple) and 納豆 (natto). The term directly describes natto produced at a temple for distribution to supporters.