To prepare the battered vegetables, first wash all the vegetables and dry them. Take the carrots, peel them (1) and trim the ends (2). Then cut them into sticks about 5/8 inch thick and about 1 5/8–2 ...

Steep kombu in 2 quarts hot water in a large saucepan for 30 minutes. Remove and discard kombu. Bring kombu liquid to a boil over high; remove from heat. Stir in 1 1/2 cups of the bonito flakes. Let ...