Wash the oysters, then shell and drain.
Sprinkle the oysters with salt, pepper and ginger. Combine the ingredients
for the batter until smooth. Heat up a wok with the oil. When very hot, dip the
oysters individually into the batter. Fry in bathes for 3
minutes until golden brown. Drain. Transfer to a heated
serving dish and sprinkle with onion. Serve hot.