The rather cryptically named daigaku imo, or university potatoes, have been a staple snack food across the university towns of Japan since the 1920s. Deep fried sweet potatoes, tossed in caramel flavoured with soy sauce which quickly becomes brittle in the air; what’s not to love about them? The soy caramel coating brings to mind the salted caramel chocolates which have become popular in the UK over the last decade, and the glazed potatoes make me think of American Thanksgiving style candied yams. Traditionally these are made with the red-pink skinned, white fleshed sweet potatoes most common in Japan, but we ate some made with the gloriously bright purple murasaki imo in Kamakura and couldn’t resist recreating those in part here. Murasaki imo have an almost winey, lychee flavour to them which works wonderfully with the salty soy sauce.









