To submit requests for assistance, or provide feedback regarding accessibility, please contact

While you can find pre-made mentsuyu in Asian grocery stores, it’s simple to make your own flavorful noodle soup base with just a few essential Japanese pantry staples—and without any preservatives or additives like MSG.



Niki Nakayama Teaches Modern Japanese CookingNiki Nakayama Teaches Modern Japanese Cooking

Niki Nakayama of two-Michelin-starred n/naka teaches you how to honor fresh ingredients with her innovative take on Japanese home cooking techniques.

Learn More

What Is Mentsuyu?

Mentsuyu, or tsuyu, is a concentrated, multipurpose Japanese soup base. When diluted, the robust base can be used as a dipping sauce for fried items, like tempura and cold noodle dishes (like somen noodles or zaru soba, with cold soba noodles), or as the foundation for hot noodle soups like ramen or udon noodles.

Like dashi stock, mentsuyu uses kombu (kelp) and katsuobushi (dried bonito flakes) to impart deep umami flavors. In place of either ingredient, mentsuyu can also be made using a dashi powder. You can make vegetarian or vegan mentsuyu by using shiitake mushrooms instead of katsuobushi.

What Are the Different Types of Mentsuyu?

In Japanese cooking, mentsuyu is generally understood in two categories: kaketsuyu and mentsuyu. When mentsuyu is combined with hot water to make a hot noodle broth, it’s called kaketsuyu. When mentsuyu is combined with room temperature or cool water to make a cold noodle soup broth, it’s called tsuketsuyu.

4 Tips for Preparing, Using, and Storing Mentsuyu

Mentsuyu is incredibly simple to make and easy to make sweeter or saltier, according to personal preference:

  1. Choose your dilution ratio. One of the benefits of making mentsuyu at home is that you can control the base’s flavor intensity, which varies based on the dish. When choosing a dilution ratio, a general starting point is three parts water to 1 part mentsuyu.
  2. Use it as a seasoning or condiment. Concentrated mentsuyu sauce can also be used as a stand-in for standard soy sauce when seasoning stews, hot pot dishes (nabemono), and dipping sauce.
  3. Incorporate condiments. When using mentsuyu as a dipping sauce for dishes like zaru soba, you can provide additional ingredients and seasonings to mix into the dish, such as sliced scallions, wasabi, grated ginger, or daikon radish.
  4. Store mentsuyu in the fridge. You can store mentsuyu noodle sauce in the refrigerator in a sealed container for up to a month.
Niki Nakayama Teaches Modern Japanese Cooking
Gordon Ramsay Teaches Cooking I
Wolfgang Puck Teaches Cooking
Alice Waters Teaches The Art of Home Cooking

Mentsuyu Recipe

2 1/2 cups
Total Time
7 min
Cook Time
7 min


  • 1 cup soy sauce
  • 1 cup mirin
  • ½ cup sake
  • 1 piece kombu
  • ⅓ cup katsuobushi
  1. Combine all of the ingredients in a saucepan. Bring the mixture to a boil over medium-high heat.
  2. Reduce to a simmer and cook the soup stock for an additional 5–7 minutes, until slightly thickened.
  3. Remove the pan from the heat, and strain the contents to remove the kombu and katsuobushi. Let the mentsuyu come to room temperature before using.

Become a better chef with the MasterClass Annual Membership. Gain access to exclusive video lessons taught by culinary masters, including Niki Nakayama, Gabriela Cámara, Chef Thomas Keller, Yotam Ottolenghi, Dominique Ansel, Gordon Ramsay, Alice Waters, and more.