Potatoes are cleaned, cut into thin slices, pour the sauce-marinade teriyaki Kikoman. Leave to marinate for 2 hours.
Mix the oil with soy sauce and juice.
Mix the two types of flour, pour the oil mixture. Stir until wet crumbs.
Pour in the boiling water, knead the soft, non-sticky dough. Leave to rest in the refrigerator for 30 minutes.
Roll out the dough into a large thin circle. I put in a mold with a diameter of 25cm. Prick with fork.
Apples clean, cut into thin slices. Lay out in one layer over the entire surface of the dough (the edge remains free). Spread on top of potatoes, and his thin onion rings. Sprinkle with coriander.
Sprinkle with vegetable oil.
Wrap the edges of the galette, put in the oven, bake at 200 degrees 30-40 minutes (see your oven). I covered with foil for the first 30 minutes.