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Mayonnaise Dressing with Sour Cream

A mayonnaise dressing made with sour cream, sugar, salt, flour, butter, vinegar, mustard, and egg.

From an old cookbook · modernised transcription
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Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Mayonnaise Dressing with Sour Cream

Ingredients

Directions

  1. Mix the sugar, salt, and flour with a little water.

  2. Add the egg and hot vinegar to the mixture.

  3. Thicken in a double boiler.

  4. Stir in the butter and sour cream.

  5. Add mustard and mix well.

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. Vinegar + mustardtop 7% of all pairs
    Smell alikemoderate
    Cooked together14,067 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  4. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Flour + mustardtop 13% of all pairs
    Smell alikemoderate
    Cooked together5,066 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Egg
Binds the dressing and helps it thicken as it cooks.
Flour
Thickens the mixture so the dressing becomes smooth and creamy.
Sour cream
Adds richness and a creamy texture to the dressing.
Butter
Adds fat for a smoother, rounder mouthfeel.
Sugar
Balances the sharpness of the vinegar with sweetness.

The step that matters

Thicken in a double boiler. Gentle, indirect heat lets the egg and flour thicken the dressing slowly. Direct high heat can scramble the egg, leaving lumps and a grainy texture.

Swap the mustard

How well each one fits the dish's main ingredients (sugar, flour, butter, vinegar, cream, egg):

  1. Shallotfits about as well
  2. Chivefits about as well
  3. Mustardthe original
  4. Leekfits about as well

Fit is the average pairing score against sugar, flour, butter, vinegar, cream, egg. 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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