From Longman Dictionary of Contemporary Englishwhite sauceˌwhite ˈsauce / $ ˈ../ noun [countable, uncountable] DFa thick white liquid made of flour, milk, and butter, which can be eaten with meat and vegetables
Examples from the Corpus
white sauce• Add the red pepper and leek and steam for a further 5 minutes. 2 Meanwhile, make a white sauce.• Make a white sauce with the milk and cornflour and add most of the grated cheese.• Prepare a white sauce by melting the butter in a pan, then adding the flour.• Add white sauce mixing slightly and dot with 1 tablespoon butter.• Lasagna; an avalanche of white sauce tearing down the glen.• Added to a simple white sauce, they make a good accompaniment to plain meats such as boiled bacon.• Remove the white sauce from the oven.• Repeat the layers, finishing with the white sauce, and sprinkle with the cheeses. 