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Dessert

Incomparable Sauce

A sweet sauce made from flour, water, salt, egg, sugar, and flavored with lemon or vanilla, served cold.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and sugar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 92,116 recipes. Both carry phenylacetaldehyde, which smells hawthorne, honey. The science ↓

Incomparable Sauce

Ingredients

Directions

Make the starch

  1. Rub the flour smooth with cold water in a teacup and add a pinch of salt.

  2. Slowly stir in boiling water until the cup is full.

Combine and serve

  1. Beat the egg and sugar together in a bowl until creamy.

  2. Pour the hot starch water slowly into the egg and sugar mixture, stirring carefully.

  3. Flavor with lemon or vanilla to taste.

  4. Set on ice to serve cold.

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. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  2. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  5. Egg + lemontop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

Flour and egg barely smell alike, yet cooks put them together in 106,462 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

Flour
Thickens the liquid into a smooth, lightly bodied sauce as its starch gelatinizes with heat.
Egg
Adds richness and body to the sauce, helping it set into a creamy texture.
White sugar
Provides sweetness and helps balance the flavor of the sauce.

The step that matters

Pour the hot starch water slowly into the egg and sugar mixture, stirring carefully.. Adding hot liquid to egg too quickly can scramble the egg proteins and leave lumps. Pouring slowly while stirring blends the mixture evenly so it stays smooth.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Lemonthe original
  4. Figfits about as well

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