The potato must be the West’s favourite comfort food – it’s certainly mine, along with bread and rice. There are so many varieties of potato, with more arriving on the shelves all the time. Look out for heirloom varieties, which come in different and surprising colours and shapes. Potatoes are basically one of two types: floury or waxy The former is great for frying and baking, and the latter for salads. Both are good for gratins. As we cook potatoes so often to accompany our meals, it is good to come up with interesting and unusual ways of preparing them to ring the changes. My suggestions here will all serve 4 as a side dish.