From Cooking Wiki
Braising
Braising is a form of stewing done usually in a braising-pan or kettle which has coals in the cover. Any granite or iron pan with a close cover to keep in the steam will answer the purpose. When placed in the oven, where it is surrounded by a slow, uniform heat, it needs very little attention. It is one of the most economical and satisfactory ways of cooking large pieces of tough, lean meat, pigeons, liver, fowls, heart, etc. Stock, vegetables, and bacon may be used, if a rich liquor be required; but water, herbs, and simple seasoning make it very palatable.