Gratin daupinois, more commonly known as potato gratin or potato bake, has its roots in the historic Dauphiné region of south-eastern France – yet centuries after its inception, it remains as popular as ever. A constant on French bistro menus and family dinner tables, its appeal lies in the magic that happens when potatoes meet cream in the oven.
Wafer-thin potato slices are bathed in a mixture of milk and cream infused with golden shallots, garlic, lemon zest and herbs. Using a…

