Bolognese sauce, or ragù alla Bolognese, is a traditional Italian meat-based sauce originating from Bologna. It typically includes ground meat, such as beef or pork, along with onions, carrots, celery, tomatoes, and sometimes wine and milk. The sauce is slow-cooked to develop rich flavors and is often served with pasta, particularly tagliatelle. This sauce is a key component of many Italian dishes, including lasagna and spaghetti Bolognese. While variations exist, the authentic recipe emphasizes a balance of ingredients and a long cooking time to achieve a deep, savory taste.