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Caper Sauce, Substitute for

A butter-based sauce flavored with parsley, vinegar, salt, and pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Caper Sauce, Substitute for

Ingredients

Directions

  1. Prepare 1 pint of melted butter.

  2. Choose dark-colored parsley or boil it slowly to reduce its color, then cut it into small pieces without chopping.

  3. Add the parsley, vinegar, salt, and pepper to the melted butter. Mix well and adjust seasoning to taste.

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 their aromas overlap, and how often cooks already put them together.

  1. Parsley + peppertop 2% of all pairs
    Smell alikestrong
    Cooked together34,122 recipes

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

  2. Vinegar + peppertop 14% of all pairs
    Smell alikemoderate
    Cooked together27,814 recipes

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

  3. Butter + parsleytop 15% of all pairs
    Smell alikemoderate
    Cooked together28,563 recipes

    Shared aroma: trans-2-hexenal (green, leafy).

  4. Parsley + vinegartop 16% of all pairs
    Smell alikemoderate
    Cooked together6,477 recipes

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

  5. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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

What each ingredient does

Butter
Forms the rich fat base that carries the sauce and gives it a smooth, silky mouthfeel.
Vinegar
Adds acidity that cuts through the richness of the butter and brightens the flavour.

The step that matters

Choose or prepare the parsley so its colour stays dark. Parsley turns dull and greenish-brown when heated for long. Choosing dark parsley or boiling it briefly and slowly helps keep the sauce looking appealing.

Swap the parsley

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

  1. Tarragonfits about as well
  2. Parsleythe original
  3. Thymefits less well
  4. Dillfits less well

Fit is the average pairing score against butter, vinegar, pepper. Candidates are from the same food group and used in at least 100 recipes.

“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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