15. PASCALINE SAUCE.
CHOP a handful of white mushrooms very fine, and place them in a small stewpan with a small piece of butter; stir them on the fire for three minutes; add a glass of French white wine, and after allowing these to simmer on the fire a little while, add a small ladleful of white sauce and a little essence of fowl; reduce the sauce quickly, and then take it off the stove and mix in a leason of three yolks of eggs, and a small pat of butter; set the leason in the sauce over the fire, and then pour it into a bain-marie for use. Just before using the sauce, add to it a tablespoonful of chopped and blanched parsley, and the juice of half a lemon.