What is another word for white onion sauce?
Pronunciation: [wˈa͡ɪt ˈʌni͡ən sˈɔːs] (IPA) 
White onion sauce, also known as bechamel sauce, is a velvety sauce made from milk, flour, butter, and onions. This classic French sauce has a smooth texture and a subtle taste that enhances the flavors of any dish it accompanies. Alternative names for white onion sauce include cream sauce, milk sauce, and roux-based sauce. It is a versatile sauce that can be used in a variety of dishes such as lasagna, gratin, mac and cheese, and many others. In addition, some variants of the white onion sauce include additional flavor enhancers such as mustard, garlic, cheese, and herbs to give it a unique twist.
