Wash apples and grate them dry. Cut off a small lid at the end of the stem. Slightly hollow out the apples and sprinkle with 1 tablespoon of lemon juice. Wash the currants, pot them dry and, except for 2 panicles for garnishing, strip them from the panicles.
Beat the egg white until stiff, adding sugar and 1 teaspoon of lemon juice. Fold in the currants. Fill the apples with beaten egg whites and put the apple lid back on top. Grill on the preheated ball grill for approx. 20 minutes with the lid closed.
Brown the meringue lightly with a Crème Brulée burner if necessary. Arrange apples in small bowls and decorate with currant panicles.