Look at them. How yellow and fluffy they are. These are Japanese sweet potatoes. I first had them in Japan last year on a ‘stove train’ in the northernmost tip of the main island. Chugging through the snow, each carriage had coal stoves at either end. A vendor rolled his trolley along the train, offering bags of dried cuttlefish to toast on the stove top and small bottles of sake.
Three middle aged Japanese women befriended me, helping me to carry my enormous blue suitcase up and down stairs. They’d brought extra snacks for the stove train: mochi cake and sweet potatoes.