Skip to main content

Dashi recipe: How to make this essential Japanese broth

Dashi is a traditional Japanese broth that serves as the foundation for countless dishes, renowned for its umami-rich flavour and high protein content. This versatile stock is made by infusing cold water with dashima (kombu), shiitake mushrooms, and dried anchovies, creating a delicate yet deeply savoury base that enhances soups, stews, and sauces. Its simplicity and wholesome ingredients make it an essential component in Japanese cuisine, perfect for those looking to elevate their cooking with minimal effort.

Ideal for nourishing family meals or a quick weeknight dinner, dashi is not only quick to prepare but also packed with nutrients. This high-protein broth can be enjoyed on its own or used as a base for miso soup, ramen, or even risottos, making it a fantastic addition to any kitchen.

Continue reading below

Ingredients for Dashi

  • 4,540 ml cold water

  • 1 (15 cm) square dashima (kombu)

  • 3 medium dried shiitake mushrooms

  • 12 large dried anchovies, gutted, heads removed

How to make Dashi

  1. Place the water, dashima, shiitake mushrooms, and anchovies in a covered stockpot or large pot. Let the mixture stand at room temperature overnight or for 8 to 12 hours.

  2. Remove the lid and set the pot over high heat. Heat until the surface of the water begins to ripple, but do not allow it to come to a boil.

  3. Lower the heat to maintain a very gentle simmer, ideally just below a light boil, and simmer for 80–90 minutes.

  4. Taste the dashi every 20 minutes to monitor the changes in flavour and texture. Expect the texture to become softer and slightly viscous compared to tap water. The sea flavour will intensify, and the dashi will darken to a pale Earl Grey tea colour.

  5. When you begin to taste sweetness alongside deep sea flavours and the dashi has a very soft texture, it is ready. Be vigilant, as dashi can become bitter if overcooked.

  6. Strain the dashi into a covered container and store it in the refrigerator for up to 2 days. Note that after 24 hours, the dashi may start to lose some of its flavour and will taste slightly flat.

  7. For the best results, use the dashi on the same day it is made. If stored in the fridge, it can be used for another day or two; however, by the third day, it will no longer taste fresh.

  8. For a vegetarian option, prepare dashi using only dashima and dried shiitake mushrooms.

Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Continue reading below

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 17 Oct 2025 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free