Beat chicken fat until white. Mix well with eggs. Add meal and potato, and enough lukewarm water to make a thick but workable mixture. Stir in the parsley, ginger, salt, and pepper, then form small balls the size of marbles and drop them into boiling soup. Boil for about 15 minutes.
1 tablespoon chicken fat 2 eggs 1 ¼ cups matzo meal ½ - ¾ cup mashed potatoes 2 tablespoons parsley, chopped ¼ teaspoon ginger 1½ teaspoons salt ¼ teaspoon pepper