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Sauce

Liquid Sauce

A sauce made from flour, sugar, boiling water, egg, and lemon juice.

From an old cookbook · modernised transcription
By Mackay, L. Gertrude. [from old catalog] · From a historical cookbook (Internet Archive) · 5 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 ↓

Liquid Sauce

Ingredients

Directions

  1. Mix one tablespoon of flour with one-half cup of sugar.

  2. Pour over it one-half pint of boiling water.

  3. Boil for one minute.

  4. Pour slowly over one well beaten egg.

  5. Add the juice of one-half lemon.

Nutrition, whole recipe (rough)

594Calories
20 gProtein
7 gFat
112 gCarbs

Counts 4 of 5 ingredients. The other 1 aren't in our nutrition table and add nothing above, so the real totals are higher.

What these numbers assume: 4 portions
IngredientPortion assumedkcal
Flour1 cup (125g) all-purpose455
Egg1 large egg (50g)78
Sugar1 tbsp (12.5g) granulated49
Lemonjuice of 1 lemon (48ml)12
Waternot in our table0

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

By Mackay, L. Gertrude. [from old catalog]. 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. See the original page.

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
Starch thickens the liquid as it heats, giving the sauce body.
Sugar
Adds sweetness and helps balance the sharpness of the lemon.
Egg
Proteins set when heated, thickening the sauce and adding richness.
Lemon juice
Adds acidity and bright flavor that cuts the sweetness.

The step that matters

Pour slowly over the egg. Adding the hot liquid slowly, while stirring, warms the egg gradually. If it goes in too fast, the egg can cook in lumps instead of blending smoothly into the sauce.

Swap the lemon

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

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

Fit is the average pairing score against flour, sugar, 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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