Peel apples, quarter them and cut out the core. Cut apple quarters into large pieces and pour lemon juice over them. Grease a casserole dish with butter. Put the apples in it.
Mix 1/8 litre apple juice, sugar, vanilla sugar and cinnamon and pour over the apples. Add aniseed. Roast in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 20-25 minutes.
Add the rest of the apple juice bit by bit during the frying time. Pour the baked apple compote into glasses or bowls. Add some yoghurt. Add the remaining vanilla yoghurt. Serve baked apple compote warm.