
1) French sauce 2) Nice sauce for fish
Found on
https://www.crosswordclues.com/clue/beurre-blanc

Beurre blanc —literally translated from French as `white butter`— is a hot emulsified butter sauce made with a reduction of vinegar and/or white wine (normally Muscadet) and grey shallots into which cold, whole butter is blended off the heat to prevent separation. The small amounts of lecithin and other emulsifiers naturally found in butter .....
Found on
http://en.wikipedia.org/wiki/Beurre_blanc

( Stratafication ) An emulsified sauce made usually of a wine or vinegar reduction blended with softened butter. This may be flavored in many ways, for fish, vegetables, and poultry dishes. This is a very tricky sauce and does not hold for long periods of time. Because of this, modern versions add a touch of cream ( Stabilized Stratafication ) to s...
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http://www.encyclo.co.uk/local/22282

a thickened butter sauce emulsified with white wine or lemon juice
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http://www.encyclo.co.uk/visitor-contributions.php

a reduction sauce of wine vinegar and shallots, cooked with butter and beaten until thick and foamy.
Found on
https://www.infoplease.com/dictionary/beurre-blanc
No exact match found.