Kombu
Kombu is a type of edible kelp, specifically from the Laminariaceae family, commonly used in Japanese cuisine. It is rich in umami flavor due to its high glutamate content.
What it means in a kitchen
In a working kitchen, kombu is often used to make dashi, a fundamental broth in Japanese cooking. The quality and type of kombu can significantly affect the flavor profile of the dish, making it essential to select the right variety. Additionally, proper soaking and cooking times are crucial to extract the maximum umami without introducing bitterness.
Common misunderstanding
Many people mistakenly believe that kombu can be used interchangeably with other seaweeds, which can lead to a significant difference in flavor. Additionally, some think that kombu should be boiled for long periods, when in fact, it is best used with brief soaking and simmering to maintain its delicate flavor.
Example
To prepare a basic dashi, start by soaking a piece of kombu (about 10 cm) in cold water for at least 30 minutes. After soaking, heat the water slowly until just before boiling, then remove the kombu to prevent bitterness.