Queen's sauce

Simmer crumbs of bread in good gravy, until it is quite thick, take it off the fire, and add a few sweet almonds pounded, 2 hard yolks of eggs, and a breast of fowl roasted, all pounded very fine; boil a sufficient quantity of cream to your sauce, and sift all together, then add pepper and salt, and warm it without boiling.

see Wikipedia Cookbook