2In a bowl, mix together matzo meal, eggs, chicken fat/schmaltz, salt, and parsley.
3Pour mixture over boiling water and let sit until mostly absorbed, then lightly mix until no dry crumbs remain. Cover and refrigerate for at least 1 hour.
4Remove the dough from the refrigerator and gently roll into 1-inch balls.
5Bring a large pot of chicken stock to a light simmer.
6Add the matzo balls to the chicken stock and cook for 20-30 minutes or until the balls start to sink.