Guest celebrity chefs aim to convert kebab lovers and curry addicts to home-cooked food while also beating the takeaway on price, speed and taste. In this episode Ainsley Harriott cooks for a south London couple whose hectic lives mean they order in three to four nights a week. They don’t believe that any chef could cook their favourite jerk chicken as well as their local takeaway, as the secret to good Caribbean food is the long, slow marinating.