Sieve the flour, vanilla powder, milk powder and gluten. Mix the water with sugar and yeast to prepare a solution and do the same with salt.

Add the yeast and sugar solution and the salt solution to the dry ingredients and mix under slow speed for approximately 3 minutes until well combined.

Add the melted chocolate and the roasted walnuts to the dough. Once its mixed, add the margarine and mix at high speed for about 3 minutes. Keep it aside for 5 minutes.

Deflate it gently and then add the white chocolate chips. Once combined, transfer the dough to a bread mould and keep it aside for proofing for 2 hours.

Bake the dough for 30 minutes at 180 degrees celsius. Prick it with a toothpick after 30 minutes. If its clean, then keep it aside to cool before serving.