Braised Beef in Walnut, Chilli and Chocolate Sauce

Chocolate is used in savoury dishes in South America, Spain and even in Italy. It must have originated from a chocolate drink found in Mexico in the 16th century, which was unsweetened. When I went to join my parents in Peru I was amazed at the idea of chocolate being cooked with meat and thought it must be quite horrible, but in fact it just enriches the flavour. In South America there is a famous turkey dish for special occasions which has both chocolate, chillies and many other ingredien