An essential ingredient for soups and stocks. Good with vegetables and for tenderising beans. To prepare, simply wipe a piece of kombu with a cloth and add it to water. Soak for 10-20 minutes, then bring slowly to a boil and gently simmer for 5 minutes. Use this stock to add depth of flavour to soups, stews, sauces and noodle broths. When cooked with beans, kombu has the unique ability to shorten the cooking time and make them more digestible.