This sticky rice dish, Sekihan, is cooked for special occasions and takes 8 hours to prepare. Edible Kashiwa (oak) leaves are used when prepared for a boy-child’s festival.
Put the azuki beans in a heavy pan and pour in 400ml/14fl oz/1⅔ cups plus 20ml/4 tsp water.
Bring to the boil, reduce the heat and simmer, covered, for 20-30 minutes, or until the beans look swollen but are still firm. Remove from the heat and drain. Reserve the liquid in a bowl and add the salt. Return the beans to the pan.