21. GREEN RAVIGOTE SAUCE.
WASH and blanch some chervil, parsley, tarragon, and chives (each a small handful), and also a little burnet; cool these in fresh water as soon as they are blanched, and thoroughly extract the water by pressing them in a napkin; pound the herbs thus prepared in a mortar with two pats of butter; after which, rub them through a fine sieve with a wooden spoon, and place the residue in a small basin, to be kept on ice, or in a cool place.
About five minutes before requiring the sauce for use, put into a small stewpan a ladleful of Allemande, and, when thoroughly warmed, mix in with it the prepared Ravigote, in sufficient quantity to give a bright green colour to the sauce; add a tablespoonful of Tarragon-vinegar, and the same quantities of Chili vinegar, and of Harvey sauce, previously reduced, by boiling, to half the quantity.
This sauce is very generally used for fillets of fish.