Unusual is not the right word! But I mean that we're all familiar with lots of dishes from Italy, India, Mexico, and so on. But what about Bangladesh? Tuvalu? Trinidad and Tobago?
Hit me with the tastiest dish that the average British person won't have heard of! Extra points for a link to a reliable recipe. Preferably without a vital ingredient which is only grown in southern Patagonia and definitely not available in Tesco.