Another way.
Put a quarter of a pound of butter into a clean stewpan, and let it boil. Strain a pint of oysters from their liquor; put them into the butter; and let them stew with some parsley minced small, a little shalot shred small, and the yolks of three eggs well beaten up with the liquor strained from the oysters. Put all these together into the stewpan with half a pound more butter; shake it and stew them a little; if too much, you make the oysters hard.