The recipe for these Knepfle, also known as quenelles de matzo or the more prosaic matzo balls, came from Madame Maryse Weil of Besançon, the late mother-in-law of my friend Nanou, French matzo balls, often called boulettes in French and Knödeln in German, are made from stale bread or matzo sheets, soaked in water and dried. These dumplings are neither as big as American matzo balls—they are the size of walnuts rather than golf balls—nor as fluffy, since no baking powder is used. Like many middle-class women in her day, Madame Weil rarely cooked but instead guided those who cooked in her kitchen. Her original recipe read, “Take as many eggs as goose fat. Mix well; add salt, pepper, and ginger and enough matzo meal so you can roll them.” Many of the old recipes, including this one, often substitute marrow for the goose fat. I prefer to cook the matzo balls in boiling salted water and then immediately transfer them with a slotted spoon to homemade chicken broth. This way I can make them in advance, and the soup remains clear.
There are two ways that one can render the fat. The first way is to take the fat off the goose or chicken and melt it down in a frying pan with onions. The second and easiest method is to make chicken soup (using the skin), then cool and refrigerate the soup overnight, and spoon off the fat that accumulates on top.
