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Do Thua

A Vietnamese pickled radish with fish sauce, palm sugar, chilies, garlic, and vegetables.

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Why it works: Chayote and sugar share more aroma than cooks usually use. They rank in the top 20% of all ingredient pairs, and 7 recipes mention both. Both carry 1-penten-3-one, which smells fish, pungent. The science ↓

The recipe

Ovena very low-temperature oven

Ingredients

Contains: soy, fish (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Prepare the vegetables

  1. Sprinkle radish with salt and let sit for 30 minutes, then pat dry with a towel.

  2. Wash and dry the shallots.

  3. Dry all the vegetables in the sun for 1 day (or in a very low-temperature oven for approximately 3 hours).

Make the brine

  1. In a small saucepan, heat fish sauce, palm sugar, chilies, garlic, salt and pepper.

  2. Simmer and reduce for 10 minutes, or until reduced by one-third.

Pickle and marinate

  1. Place in a sterilized glass jar.

  2. Pour liquid into jar.

  3. Close the lid.

  4. Marinate for 1 week.

Recipe from the Recipes Wiki (Fandom).

This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.

Steps grouped into stages for easier reading; the method is the source's own.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Chayote + sugartop 20% of all pairs
    Aroma overlapstrong
    Mentioned together7 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  2. Carrot + peppertop 3% of all pairs
    Aroma overlapstrong
    Mentioned together14,555 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Chayote + garlictop 4% of all pairs
    Aroma overlapmoderate
    Mentioned together31 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Shallot + garlictop 4% of all pairs
    Aroma overlapstrong
    Mentioned together1,949 recipes

    Shared aroma: coumarin (sweet, hay).

  5. Radish + garlictop 5% of all pairs
    Aroma overlapstrong
    Mentioned together198 recipes

    Shared aroma: 1-hexanol (resin, flower).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Daikon radish
Forms the crisp, firm body of the pickle that holds up during long marinating.
Fish sauce
Supplies salty, savory depth and acts as the main preserving liquid for the vegetables.
Palm sugar
Adds sweetness that balances the salty fish sauce and sharp chilies.
Shallots
Contribute mellow sweetness and aroma that soften as they marinate.
Red chilies
Add heat and bright flavor that infuses the brine over the marinating week.

The step that matters

Drying the vegetables before the brine. Any surface moisture left on the vegetables dilutes the fish sauce brine and weakens its preserving effect, while thorough drying lets the vegetables stay crisp and absorb flavor evenly.

Flavor stand-ins for the chayote

How well each one fits the dish's main ingredients (radish, shallot, carrot, fish sauce, sugar, garlic, pepper):

  1. Capsicumbetter flavor fit
  2. Broccolibetter flavor fit
  3. Chivebetter flavor fit
  4. Chayotethe original

Fit is the average pairing score against radish, shallot, carrot, fish sauce, sugar, garlic, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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