Preheat the oven to 200 degrees, make a fruit salad from the fruit and the juice of the lemon and put it in an ovenproof dish. Cut toast into cubes and soak in milk, separate eggs and add egg yolk to the toast-milk mixture, beat egg white with vanilla sugar until stiff and fold in, spread on the fruit, sprinkle with brown sugar (who likes to add cinnamon) and bake on the middle shelf for 20 minutes.