Wash the potato well. Then wrap it with the skin on and microwave at 550w for about 3 minutes. It will be hot, so remove the skin while poking it with a fork. Mash it up in a bowl.
Microwave the okara for about 2 minutes and then combine with the ingredients from the previous step and mix. Take the ingredients marked with a ・and mix them also. Put the whole mixture in a small plastic bag, and cut off a corner of the bag. Use the bag like a piping bag to squeeze out the mixture. (The picture shows a triple portion.)
Line a baking tray with kitchen parchment paper, and squeeze out stick shaped pieces of the dough. Bake in an oven or toaster oven for about 10 minutes and you will have delicious and light okara potato curls.
Variation: Since it tastes almost just like mashed potatoes, in step 2 you can just mix it up well with a spatula, heat it through and serve as a side like mashed potatoes.