Cut the chicken breast into bite-sized pieces. Then first dip the pieces in the whisked egg mixture and then turn them in potato flour.
Mix the ingredients for the sauce well in a bowl. Heat the oil in a pan and fry the pieces of meat until golden brown on both sides. Pour the sauce evenly over the pieces of meat. Simmer over medium heat for about 5 minutes until the sauce is thick.
In Japan, rice, a salad or vegetable component and (miso) soup are traditionally eaten with this.