1 Review
From: EatingWell Magazine, Winter 2003

Dried kelp and bonito flakes, briefly simmered, create a delicate amber broth called “first” or “primary” dashi, the basis for most clear soups in Japan. For “second” dashi, the kelp and bonito are added to a new pot of water (like a used tea bag), making a weaker stock to be used in boldly seasoned dishes like miso soup. Although instant dashi granules and bottles of concentrated dashi are timesaving substitutes, the taste is less subtle and refined than dashi made from scratch.

Ingredients 5 servings

for serving adjustment
Serving size has been adjusted!
Original recipe yields 5 servings
Nutrition per serving may change if servings are adjusted.
  • 6½ cups cold water, divided
  • 1½ ounces dried giant kelp, (konbu or kombu)
  • 1½ ounces (approximately 7 cups) bonito flakes


  • Active

  • Ready In

  1. Place 6 cups water in a large saucepan over high heat. Add kelp and bring to a boil. Immediately remove kelp with tongs (if it boils it can turn the broth bitter), reserving it for Second Dashi.
  2. Add the remaining ½ cup cold water (to cool the broth), then add bonito flakes. Return to a boil, then immediately turn off heat (if boiled, bonito can also turn the broth bitter). Let the broth rest for 2 minutes, then pour through a cheesecloth-lined sieve, making sure to avoid pressing down on the solids (which will turn dashi cloudy). Save the used fish flakes for Second Dashi.
  3. For Second Dashi: Place reserved kelp and bonito flakes with 8 cups cold water in a large saucepan. Bring to a boil, reduce heat to low, and simmer for 30 minutes. Strain broth through a cheesecloth-lined sieve, pressing down on solids before discarding them.
  4. Makes about 6 cups.
  • Make Ahead Tip: Cover and refrigerate for up to 2 days or freeze for up to 3 months.

Nutrition information

  • Per serving: 242 calories; 0 g fat(0 g sat); 13 g fiber; 26 g carbohydrates; 34 g protein; 0 mcg folate; 28 mg cholesterol; 0 g sugars; 0 IU vitamin A; 0 mg vitamin C; 304 mg calcium; 28 mg iron; 1,319 mg sodium; 2,575 mg potassium
  • Nutrition Bonus: Iron (156% daily value), Calcium (30% dv)
  • Carbohydrate Servings:

Reviews 1

November 17, 2009
profile image
By: EatingWell User
Hi this is great. But when I went to my Asian supplier they suggested using flakes. I have 3g in 5 packs. But I have a recipe that calls for a 1/4 cup of dashi granules in 375 mils of water (after soaking dried shitake). Can you tell me the conversion? Do I use 1 pack or 2? Any assistance will help (I'm trying to impress my wife who is just coming home from "lady" surgery.......pls help a "batchelor"
More Reviews