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Sauce

A Sauce

A vinegar-based sauce with shallots or garlic, cayenne pepper, soy or mushroom ketchup, and walnut pickle.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Shallot and mushroom are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 1,960 recipes mention both. Both carry 2-octenal, which smells fatty, green. The science ↓

The recipe

Ingredients

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

Directions

  1. Mix together the vinegar, shallots or garlic, cayenne pepper, Indian soy or mushroom ketchup, and walnut pickle.

  2. Let the mixture stand for a week, shaking it daily.

  3. Strain the mixture and bottle it for use.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

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. Shallot + mushroomtop 3% of all pairs
    Aroma overlapmoderate
    Mentioned together1,960 recipes

    Shared aroma: 2-octenal (fatty, green).

  2. Shallot + walnuttop 6% of all pairs
    Aroma overlapstrong
    Mentioned together435 recipes

    Shared aroma: 2-octenal (fatty, green).

  3. Pepper + mushroomtop 6% of all pairs
    Aroma overlapstrong
    Mentioned together13,578 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Vinegar + shallottop 6% of all pairs
    Aroma overlaplow
    Mentioned together2,282 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Vinegar + peppertop 6% of all pairs
    Aroma overlapmoderate
    Mentioned together27,805 recipes

    Shared aroma: 4'-methylacetophenone (bitter almond).

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

What each ingredient does

Vinegar
Provides the sharp acidity that forms the base of the sauce and helps preserve it.
Shallots or garlic
Adds pungent aroma and savoury depth as the flavours infuse into the vinegar.
Cayenne pepper
Adds heat that builds as the mixture stands.
Indian soy or mushroom ketchup
Contributes salty, savoury umami depth.
Walnut pickle
Contributes concentrated walnut flavour and a dark, rich colour.

The step that matters

Letting the mixture stand for a week. Flavours need time to extract and blend into the vinegar, and the daily shaking spreads the ingredients evenly so the infusion is consistent throughout. Stopping early leaves the sauce harsh and uneven.

Flavor stand-ins for the walnut

How well each one fits the dish's main ingredients (vinegar, shallot, pepper, mushroom):

  1. Peasbetter flavor fit
  2. Sesamebetter flavor fit
  3. Beansbetter flavor fit
  4. Walnutthe original

Fit is the average pairing score against vinegar, shallot, pepper, mushroom. 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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