Mix the hot cake mix and tofu together. It's okay if it's a bit sticky.
Put the shiratamako into a separate bowl, add water and knead until it's about the same softness as your earlobes.
Mix ingredients from Step 1 and 2 and put into a piping bag. People that find it bothersome can scoop the mixture with a spoon and drop it into the oil as is. It will still taste the same.
Cut baking paper into 8cm square sheets, pipe the mixture onto the sheets. Join the ends of the mixture by wetting a finger and molding together.
Put the doughnuts in 170°C oil while still on the baking paper sheets and deep fry until golden. When the sheets come away from the doughnuts in the oil take them out.
Mix kinako and sugar and coat the doughnuts to finish.
I had a go at making ball shapes for the donuts. It was difficult to start with but it became enjoyable as I got used to it!
Apple tea cup-san who posted a review of my recipe used scissors to snip! snip! the piped mixture into segments instead of using a rubberband. You can get them looking this good with scissors Please go ahead and use this as reference as well.