Su no Shui (Warm Grated Daikon and Sardine Vinegar Soup)
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Su no Shui (Warm Grated Daikon and Sardine Vinegar Soup)

Quick answer

Total time
40 min
Level
Easy
Servings
12 servings
Ingredients
5

About this dish

Su no shui is a warm Miyazaki soup of coarsely grated daikon and overnight-dried sardines seasoned with light soy sauce and vinegar.

Read more

In the local name, shui means soup. Unlike a cold vinegared salad, this dish is served steaming and was often eaten with freshly pounded rice cakes. Grating the daikon on a coarse surface rather than turning it into a fine puree leaves small pieces that catch the fish broth. The sardines are cut into 4 or 5 sections and simmered so their flesh and bones flavor the water. Vinegar enters just before the heat is turned off, which softens its sharp edge without cooking away the bright acidity. The 12-serving pot is divided into small bowls with daikon and fish distributed evenly.

Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

5 steps
  1. 1
    Prep

    Peel only the rough outer layer from 1kg daikon and wash well.

    Grate on a coarse grater so pieces about 3mm remain, keeping all released juice.

  2. 2
    Prep

    Wipe the surfaces of 2 overnight-dried sardines with clean paper towel.

    Cut each fish through the bones into 4 to 5 sections from head to tail.

  3. 3
    Control

    Put 2400ml water, grated daikon and its juice, and the sardines in a large pot.

    Bring to a boil, skim the foam, reduce to medium, and cook for 10 minutes.

  4. 4
    Season

    When the thickest sardine flesh reaches at least 63°C, add 80ml light soy sauce.

    Cook 2 minutes more, stirring slowly with a ladle so the daikon does not catch on the bottom.

  5. 5
    Finish

    Pour 120ml rice vinegar around the pot and turn off the heat just before it returns to a boil.

    Divide the sardine and grated daikon evenly among 12 small bowls and serve hot.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique
One kilogram coarsely grated daikon and two overnight-dried sardines
Finish cue
Pour 120ml rice vinegar around the pot and turn off the heat just before it returns to a boil.
Storage and reheating
Su no shui is a warm Miyazaki soup of coarsely grated daikon and overnight-dried sardines seasoned with light soy sauce and vinegar.

Cooking decision evidence

Calculated Charim data and applicable official food safety guidance.

This recipe

40min, 5 ingredients

Category median

45min, 8 ingredients

Based on 242 recipes

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Tips

Long boiling weakens the vinegar aroma. Add it only after the sardines are fully cooked and stop before the soup returns to a hard boil.
The sardines are cut through the bones, so small bones remain. Remove the flesh separately and strain the broth finely for children or anyone with swallowing difficulty.

Estimated nutrition (per serving)

Calories
68
kcal
Protein
5
g
Carbs
9
g
Fat
1
g