Caul fat (French: crépine) is a thin, lacy membrane of fatty connective tissue that surrounds the stomach and internal organs of pigs, lambs and other animals. It forms a delicate web that can be stretched around meat, forcemeat or other preparations. During cooking, the fat melts and helps baste the filling while the membrane holds the shape together.
Caul fat is usually supplied chilled or frozen. If frozen, thaw it under refrigeration. Gently separate the membrane, rinse or soak only as directed by the supplier or recipe, then drain and pat it dry. Cut pieces large enough to wrap the product with a slight overlap. Keep it chilled until use because it becomes fragile and difficult to handle as it warms.
Caul fat is used to wrap crépinettes, lean meat portions, forcemeats, terrines and certain roasts. It can also be used to encase game or poultry preparations that benefit from added fat and a secure shape. The membrane becomes less visible as it cooks and helps prevent the filling from drying out.
Example: wrap a seasoned pork or game forcemeat in caul fat to make crépinettes, then pan-fry or roast until the filling is fully cooked and the exterior is golden.
Caul fat is a membrane used for wrapping. Back fat is a firm layer of subcutaneous fat used in sausages, pâtés and lardo. Leaf fat is the softer internal fat around the kidneys and loin, prized for rendering into a mild lard.
Chef’s tip: wrap evenly without excessive layers so the caul fat melts and browns rather than forming a thick, chewy membrane. Confirm the animal source with the supplier.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
