Brown gravy can be made from any kind of stock. If the stock is good, put it into a saucepan and thicken every pint with 1 ounce of flour. If the stock is not very good, boil some vegetables in it with any trimmings of meat and poultry available, and thicken with butter and flour; a few drops of lemon juice will bring up the flavour. It should be of a rich brown colour. It can be coloured with a little sugar burnt in a spoon, or with a few drops of caramel, a recipe for which will be found elsewhere.