Much of India’s vast railway system was built during the British Raj era, including a stretch from Mumbai (formerly Bombay) all the way to Peshawar (in what is now Pakistan). The train known as The Frontier Mail ran this route, and the journey time of 72 hours meant that plenty of provisions - including this delicious curry - would be dished out to first class customers. Alongside the rich lamb curry we have buttery garlic coriander naans, combining to make a fantastically indulgent meal!