Pollo a la brasa (Peruvian roasted chicken)

This rotisserie-cooked chicken is eaten all over Peru and is also popular in the rest of Latin America and the US. Ceviche is the only restaurant in the UK that serves it, but here is a version to make at home in the oven. SERVES Four INGREDIENTS 1 chicken, weighing approx 1.7kg For the marinade 1 tsp ground cumin 1 tsp ground black pepper 1 tsp American mustard ½ tsp dried oregano 150ml any stout beer 2 tbsp red wine vinegar 2 tbsp soy sauce 1 tbsp mashed garlic 1 red chilli, finely chop