Mirepoix () is the French name for a condiment used for cooking. Mirepoix consists of onions, carrots and celery (either common Pascal celery or celeriac). Mirepoix is used in many dishes, such as stocks, soups, stews and sauces. It is used either raw, roasted or sautéed with butter. Mirepoix is known as the holy trinity of French cooking.