Dauphinoise potatoes are reputed to have been created as a way to encourage the young Dauphin (the French prince who became King Henri II) to eat his veg. The truth is more prosaic; the dish was actually created in the Dauphiné region of France and consists of thinly-sliced potatoes, mixed with milk, cream or creme fraiche, and cheese, garlic and seasoning. It’s also known as gratin dauphinois.
‘Au gratin’ means to prepare a dish by thinly slicing ingredients, then baking in a creamy sauce. It’s delicious served with beef steak or lamb!