Back A speciality of the canton of Vaud: leeks and potatoes in white sauce. Sausage with cabbage is probably the most iconic dish of Vaud cuisine. It is served separately with the famous papet, which is a purée made by mixing chopped leek whites and greens, cooked in white wine with raw potatoes and, depending on the region and personal taste, onions, lard, salt, pepper and a little cream.