Origin
Mirepoix, matignon and bouquet garni belong to the classical French kitchen and serve as working foundations of the fonds, the braises and the sauces. The mirepoix is distinguished from the matignon by its cut and its purpose. The bouquet garni is the common herb bundle of the French stockpot and braising pan, prepared as part of the daily mise en place of the brigade kitchen.
Description
The mirepoix is a mixture of carrot (Daucus carota) and onion (Allium cepa), diced, to which celery and lean raw or cured ham may be added, cooked in butter with thyme and bay leaf to flavour a sauce, a braise or a joint. The matignon is a related preparation of the same vegetables cut finer and cooked gently in butter, often with ham, used to season and to lay beneath or around braised meats and poultry. The bouquet garni is a bundle of parsley stalks, thyme (Thymus vulgaris) and bay leaf (Laurus nobilis), tied with string around a piece of leek or celery so that it may be lifted out whole at the end of cooking.
The Thread
Flavour Context
These preparations are not eaten alone but lie beneath brown stocks, braised beef, veal, game and poultry, and beneath sauces such as the sauce espagnole. They are served with the full red wines that accompany such dishes, and a dry white suits the lighter fonds. The structural reason is that the sweetness of carrot and onion and the bitterness of the herbs round the savour of the meat and balance the acidity and tannin of the wine used in the cooking.