Open the oysters and remove them from their shells. Strain the oyster juice into a saucepan and bring to the boil. Add the oysters and simmer for a few seconds, then allow them to complete their cooking for a further 8 minutes without further boiling.
Oysters will become rubbery and tough if permitted to over-boil or overcook. They are usually used in garnishing fish dishes or as hors-d’oeuvre.