Beurre monté including as a sauce, as an ingredient for other sauces, as a poaching medium, or as a resting medium for cooked meat. In order to make a "beurre monté", boil a very small quantity of water, i.e. 15–60 mL (1–4 tablespoons). Once water has come to a boil, turn the heat down and start whisking the cold butter into the water, one or two chunks at a time. Add more butter whenever the chunks have melted. Once the emulsion is started, more butter can be added at a time. Continue adding butter while whisking until one has the desired quantity
Beurre blanc 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 are used to form an oil-in-water emulsion. Although similar to hollandaise in concept, it is considered neither a classic leading nor compound sauce. This sauce originates in Loire Valley cuisine. The chef Clémence Lefeuvre (née Clémence Prau) invented "beurre blanc", apparently by accident, some time around