General Information


Offal

How much to allow :
 
Liver
Allow 120g / 4oz raw per portion

  Kidneys
Ox - Allow 120g / 4oz raw per portion
Calves' - 1 kidney will serve 1-2 portions
Lambs' - Allow 2 kidneys per portion
Pigs' - Allow 1-2 depending on size

  Hearts
Ox - A whole one will serve 4-6 portions
Calves' - one will serve two portions
Lambs' - Allow one per portion

  Sweetbreads
Allow about 120g / 4oz or one pair per portion

  Tripe
Allow 100-175g / 4-6oz raw per portion

  Brains
Allow 1-2 sets per portion

  Tongue
Ox - Weighs about 1.8kg / 4lb so will serve about 8 hot, or more if served cold
Calves' - Weighs about 450-900g / 1-2lb each so will serve 3-4 portions
Lambs' - Allow one per portion

  Oxtail
1 oxtail will serve 4-5 portions


Liver
  There are several types of liver available;  all are excellent value but vary in flavour and texture.  Whatever type it is, it should be smooth and glossy.  Wash it and remove any loose pieces of skin and veins.  Take care not to overcook liver, as it becomes hard and uninteresting.

Ox Liver
  This is fairly cheap but has a strong flavour and can be tough.  The texture is quite coarse, so it is best to use it in a casserole, rather than for grilling, broiling or frying.

Calves Liver
  This is the best and most expensive liver, but is not always readily available. It is very tender and delicately flavoured, and is best lightly fried, grilled or broiled with extra butter to prevent it drying.  If overcooked, it will become tough and flavorless.

Pigs Liver
  Cheaper than lambs' liver, it has a very pronounced flavour and rather soft texture, disliked by some.  It can be fried, grilled or broiled and is very good used in casseroles.  It is the best liver, ( along with chicken livers ), to use for making pates and terrines.  Some of the strong flavour can be removed by soaking the liver in milk for an hour before cooking.

Lambs Liver
  Cheaper than calves' liver and with a stronger flavour but not nearly as strong as pigs' liver.  Probably the most popular and most versatile type of liver.  Fry, grill, broil or add to casseroles and stews.


Kidneys
  With any type of kidney, remove the skin and core before cooking - a pair of kitchen scissors is best to use for this task.  Kidneys can be grilled, broiled or fried, as well as using for casseroles and pan fries.  They can also be blended with beef and other meats for casseroles, puddings and pies.

Ox Kidney
  The cheapest and obviously largest of the kidneys.  It has a fairly strong flavour and needs slow gentle cooking to make it tender.  The kidney is made up of many joined lobes, and a whole one weighs about 675g / 11/2lb.

Calves Kidney
  Much the same as ox kidney but of coarse smaller and more tender, but used in the same way.

Lambs Kidneys
  These are usually the best and most popular of all the kidneys.  They are small and well flavoured without being strong or overbearing, and are tender enough to grill, broil, or fry whole, halved, or cut into pieces.  Do remove the thin outer skin and the core before cooking, and take care not to overcook as they will become hard.

Pigs Kidneys
  These are a little larger than lambs' and rather more elongated.  They are also stronger in flavour and can be cooked as for lambs', but are usually halved or cut into smaller pieces.  Also good to add to casseroles.


Sweetbreads
  These must be bought when they are very fresh and should be used at once.
Calves' sweetbreads are the best apart from lambs', which are the most expensive and usually even better.  Allow one pair per portion and keep them as white as possible by soaking them for at least 4 hours in cold water, which should be changed several times, then put into cold salted water and brought to the boil.  Remove the veins and skin, place the blanched sweetbreads between two plates to flatten them and allow to cool.  To cook, either coat in egg and breadcrumbs and shallow fry in butter, or cook in sauce.


Tripe
  This comes from the stomach lining of an ox.  It is a light easily-digested meat, but it must be prepared carefully.  There are two types - ordinary or blanket and 'honey-comb' - and they come from the first and second stomach respectively.  Tripe is usually sold 'dressed' or cleaned and par-boiled, but it requires further cooking.  Tripe is often served in a white onion sauce but can also be dipped in egg and breadcrumbs and deep or shallow fried, or be simmered in a spicy tomato and garlic sauce.  It is not the flavour of which people are wary, but more the texture, which almost melts in the mouth.


Hearts
  Hearts used to be very popular as a tasty stew or casserole, but their popularity has dwindled somewhat.  However, it is an economical meat with no fat, although being a strong muscle itself, it does require long slow cooking to tenderize it.  The gravy it makes has a marvellous flavour and is full of nutrients.
Wash thoroughly and remove all the tubes and arteries.

Ox Heart
  Is the largest and toughest, so should be cut into strips or cubes and casseroled slowly.  It can also be parboiled and then stuffed and pot roasted with plenty of good flavouring vegetables and stock.  A whole heart will weigh from 1.5-2kg - 3-41/2lb.

Calves Heart
  Smaller and therefore more tender than the ox heart, but they still need slow cooking for preference, such as pot roasting or braising, although they can also be stuffed and roasted, preferably under a lid of foil.

Lambs' Heart
  These are the smallest and most tender of all the hearts with a very pleasant flavour.  They are usually stuffed and roasted, pot roasted or braised.


Brains
  These must be bought when really fresh and used as soon as possible after purchase.  Often a butcher will ask a customer to order brains when they are required for they will not keep, and it is up to him to make sure he only sells them when they are very fresh.  Calves' are the best and are usually poached and served with a delicately flavoured sauce.  Lambs' can be cooked as calves' but are more often casseroled.
  Calves brains should be soaked in cold water for 15 minutes, before being put into a pan of cold water and brought to the boil.  Remove and take off the membrane before continuing.  Allow 1-11/2 sets of brains per portion.


Tongue
  When buying a tongue make sure that the skin is smooth, for the tongue becomes rough as it ages.  Salted and smoked tongues are available, as well as fresh, ( though they may need to be ordered in advance ), and they are best soaked in cold water overnight before cooking.  Salted and smoked tongues require only about half the cooking time of fresh ones.
  Ox tongue has the best flavour and texture and can be boiled or braised to serve hot or cold.  Calves or lambs tongues are much smaller and are usually sold fresh.  They are usually poached or braised and more often served hot.
The small tongues, once cooked, can be skinned, if preffered, and then returned to the casserole before serving.


OxTail
  This has a high proportion of bone and is usually rather fatty, but it is an inexpensive meat with an excellent flavour, and with slow cooking becomes very tender and ideal for rich hearty stews and soups.  
  It should look fresh when bought, with good red flesh and creamy white fat, and the butcher will cut it ( if it isn't already cut ) into thick slices ready for use.
It is a good idea to make an oxtail dish the day before required and allow it to chill, so the layer of fat can be easily removed before it is re-heated for serving.