Walnut sauce is a rich and flavorful condiment made primarily from ground walnuts, often combined with ingredients like garlic, olive oil, and vinegar. It is commonly used in Mediterranean and Middle Eastern cuisines, adding a creamy texture and nutty taste to various dishes. This sauce can be served with pasta, grilled meats, or as a dip for bread and vegetables. In some regions, it is also used as a dressing for salads or as a topping for roasted vegetables, enhancing the overall flavor profile of the meal.