Sufganiyot are donuts, usually jelly-filled, that commemorate the miracle associated with the oil that burned for eight days in the Hanukkah story. Foods cooked in oil are traditionally eaten during Hanukkah.
The Eternal One spoke to Moses, saying: "Speak to the Israelite people thus: When a woman at childbirth bears a male, she shall be impure seven days; she shall be impure as at the time of her condition of menstrual separation." - Leviticus 12:1-2
The Eternal One spoke to Moses, saying: "This shall be the ritual for a leper at the time of being purified ." - Leviticus 14:1-2