Chop shrimp finely and place in a bowl.
For best results chop by hand - a food processor will just puree the shrimp. Add 1 tablespoon of the egg mixture, the ginger, the salt, the oyster sauce and the cornstarch. Mix well to blend to a smooth paste. Spread the bread with the shrimp mixture and chill for at least 15 minutes. Heat the oil in a wok or deep fryer.