Churrasco is a Brazilian word meaning ‘barbecued’ or ‘grilled on skewers’. Although often served with chimichurri sauce – a lovely herby sauce with garlic, oregano and red wine vinegar – I’ve chosen the lesser known aji sauce from Peru – a sweet onion and jalapeño combination that is a little like a South American version of Thai nam jim dipping sauce. It also goes well with empanadas, grilled meats and seafood.