Preheat the oven to 200 degrees Celsius. Use the butter to grease the baking dish and to spread on the bread. Then spread the bread with the jam.
Sprinkle with the grated zest of the lemon, the cinnamon and the brown sugar. Cut the bread into irregular pieces and place them in the greased baking dish. Sprinkle with the raisins and apple pieces. Lightly beat the eggs and milk together.
Pour the mixture over the bread in the baking dish. If time allows, leave to stand for a quarter of an hour.
Sprinkle with the sugar and put in the oven for 30-40 minutes. Serve hot or cold.