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5 from 2 votes

How to Make Dashi (Japanese Soup Stock)

Dashi is used in Japanese cooking for a variety of soups and dips. This soup stock is known for its umami flavor and is easy to make at home!
Prep Time5 minutes
Cook Time15 minutes
Total Time20 minutes
Course: soups
Cuisine: Japanese
Servings: 4 cups
Author: Kevin


  • 10 g dried kelp kombu
  • 10 g dried bonito flakes katsuobushi (1 cup)
  • 4 1/4 cups water


  • Cut or break the kombu into several pieces.
  • In a large enough saucepan, add the water and the kombu pieces. On medium heat, slowly bring to almost a boil. Skim any residue or foam as needed. Turn off heat as you start to see bubbles. Remove kombu with tongs and save for other use or discard.
  • To the saucepan add the dried bonito flakes, stir through and bring to a boil. Once it starts to boil, remove from heat and let steep for 10 minutes.
  • Strain the dashi through a fine-mesh sieve over measuring bowl. Press wet bonito flakes to extract as much liquid as possible. Discard or save the katsuobushi for other use.
  • Use right away for soup base of choice or store in the refrigerator covered for 5 days or in the freezer for up to 2 weeks.



Calories: 9kcal | Carbohydrates: 0.2g | Protein: 2g | Fat: 0.01g | Saturated Fat: 0.01g | Monounsaturated Fat: 0.003g | Cholesterol: 2mg | Sodium: 25mg | Potassium: 24mg | Fiber: 0.03g | Sugar: 0.01g | Vitamin A: 3IU | Vitamin C: 0.1mg | Calcium: 12mg | Iron: 0.1mg