Daigaku imo (candied sweet potato)
Daigaku imo, 'university potatoes', got their name from the Tokyo student cafés of the early 1900s, and today they are what Japanese parents fry when autumn sweet potatoes arrive and children come home hungry. The chunks are crisp at the edges and fluffy inside, coated in a glossy glaze that sets to a light crackle, with nutty black sesame on top. This version uses a modest amount of sugar balanced with soy sauce. It contains soya, gluten (soy sauce) and sesame. Chef's tip: pull the pan off the heat the moment the glaze turns thick and bubbly; a few seconds more and it hardens into toffee.
































































































