For the floating islands
Whisk the egg whites until almost stiff. Continue whisking, adding the sugar and
lemon juice, until the egg whites are quite stiff and hold their own shape. Heat the milk in a large shallow pan. Either pipe or spoon the meringue into 12 shapes on the milk, allowing space between each one. Simmer gently for 4 minutes. Drain the floating islands on a clean cloth. Mix the custard with the créme fraîche,
orange zest and
orange juice. Divide the sliced
bananas amongst 4 pretty shallow soup bowls, and pour over the
orange custard. Top each one with 3 floating islands. Decorate with strips of
orange peel and green leaves.