Drain the tofu and break into medium sized pieces. Clean and wash the leek and cut it into approx. 5 mm thick rings. Peel and slice the onion. Heat the oil in a pan and fry the onion in it at medium heat until golden brown. Add the tofu and also fry. Dust with curry and deglaze with vegetable stock. Add leek, bay leaf and chilli pepper and simmer for about 10 minutes.
Peel and quarter the apple and remove the core. Cut the apple quarters into slices and add them about 5 minutes before the end of the cooking time. Mix starch and yoghurt, stir in chutney. Bring to the boil and season to taste with salt and lemon juice. Put the tofu curry in a bowl and serve. Basmati rice tastes good with it