Banana and Kinako Doughnuts

Kinako is made by grinding roasted soybeans; it is a nutty and fragrant flour reminiscent of ground peanut, and so is a great substitute for those with a peanut allergy. Sweetened with sugar, it works well as a coating in traditional Japanese sweets as it does here in these homemade doughnuts. The doughnuts can be whipped up in about 3 minutes, just the time you need to heat the oil. They have an intense banana flavour and are soft and gooey inside but with a crispy and nutty outer layer. A