
This simple miso soup starts with fragrant Kayanoya dashi for a clean, savory broth and comes together in minutes. Add tofu, seaweed, mushrooms, or vegetables to make it your own, then finish with miso for a comforting Japanese soup that tastes light yet deeply satisfying.
Pour 400 ml cold water into a small pot and add 1 bag of Kayanoya dashi. Start with cold water so the dashi can release its flavor properly.

Place the pot over medium heat and bring it to a gentle boil. Let it simmer for 1 to 2 minutes to infuse the broth.

Remove and discard the dashi bag.

Add your chosen soup ingredients, such as tofu, mushrooms, seaweed, or quick-cooking vegetables. Simmer until the ingredients are just tender.

Reduce the heat to low. Dissolve the miso into the broth using 1 1/2 tbsp to start, stirring until smooth. Taste and add up to 2 tbsp if you prefer a stronger miso flavor.

Warm the soup gently for 1 to 2 minutes without boiling, then serve immediately.

Do not boil the soup after adding miso, or the flavor can become harsh and less aromatic. Wakame, cubed tofu, sliced shiitake mushrooms, and abura-age all work well here. Leftovers can be refrigerated for up to 1 day, but the soup is best served fresh.
