Kombu Smoked Dashi
Cut slits in the kombu to increase surface area. It is easier to remove the kombu later when it is a single piece. Cut the kombu to look like a comb. Add the kombu and mushrooms to the water for at least an hour (preferably overnight). Keep in the fridge. Bring the water to a boil and add the kombu, and mushrooms for 30 minutes. Add the bonito flakes and chiilies Remove the kombu, add the smoked fish, and warm through.