For the filling combine sultanas, ginger jam, almonds, cinnamon, and star anise.
Carve a 3- 4 cm hole in the apples and fill the holes with the filling. Place the apples in a baking tray and add 1/2 tsp cocoa butter onto each apple. Add water to the tray.
Place the tray in the oven and bake for 30 to 40 minutes. Poke the apples with a knife to check if it is done. If it slides in with no resistance it is baked.
Meanwhile pour milk in a small pot. Add vanilla and cook over medium heat until it is hot, but not boiling.
In a bowl beat eggs, honey, and starch until the mixture is thick and fluffy.
Gradually add milk into the egg mixture. Then pour it back to the pan and cook over low heat (very important!). Whisk constantly until the sauce has thickened. This will take about 7 -8 minutes. Remove from the heat, pour it in a cold bowl and cover, so it doesn't form a crust.
When the apples are done, take them from the tray and onto the plates. Serve hot with vanilla sauce on the side.