Meanwhile, in a mixing bowl, combine the matzoh meal and eggs.
Stir in the matzoh meal, apples, parsley, salt and pepper.
Whisk in the butter, and then the matzoh meal and baking powder.
Place half a cup of fish broth in a large bowl and stir in the matzoh meal.
Lightly beat egg yolks and mix in, then add matzoh meal.
If necessary, add matzoh meal to make a mortarlike consistency.
Mix in the grated potatoes, matzoh meal and the onion.
Mix in enough matzoh meal to make a soft dough.
Drop in one marrow ball; if it doesn't hold together, add more matzoh meal to the dough.
Mrs. White said the fish was cooked in matzoh meal to make it kosher.