Possible Clues:

• Buckwheat porridge
• Buckwheat dish
• Buckwheat cereal
• Buckwheat groats
• Soft buckwheat dish
• Cooked cereal
• Dish of cooked buckwheat
• Buckwheat dish popular in eastern Europe
• George's father's favorite food, on "Seinfeld"
• ___ varnishkes (buckwheat-and-pasta dish)