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Frozen Custard

A chilled custard made by boiling milk, mixing with eggs, starch, sugar, vanilla, then freezing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Frozen Custard

Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Frozen Custard

Ingredients

Directions

Make the custard

  1. Sweeten the milk with sugar and bring to a boil.

  2. Whip the eggs and mix in the corn starch dissolved in a small amount of milk.

  3. Gradually pour the boiling milk over the egg and starch mixture.

  4. Return the mixture to the kettle and stir until it begins to thicken.

Flavor and freeze

  1. Flavor with vanilla and freeze.

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.

Photo for illustrative purposes only · Contact us to use it

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. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

  2. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

  3. Corn + vanillatop 9% of all pairs
    Smell alikemoderate
    Cooked together1,943 recipes

    Shared aroma: ethyl cinnamate (sweet, balsamic).

  4. Milk + corntop 10% of all pairs
    Smell alikemoderate
    Cooked together6,955 recipes

    Shared aroma: hexanal (green, grassy).

  5. Corn + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together1,927 recipes

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

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Eggs
Provide richness and, as they set with heat, give the custard body and a creamy texture.
Corn starch
Thickens the milk as it heats, giving the custard its smooth, scoopable body.
Sugar
Sweetens the custard and softens its texture once frozen.
Milk
Forms the liquid base that carries the flavor and, with fat, gives a creamy mouthfeel.

The step that matters

Return the mixture to the kettle and stir until it begins to thicken.. Cornstarch thickens only when heated enough, but eggs can curdle if overheated. Stirring keeps heat even so the starch thickens smoothly while the egg proteins stay tender.

Swap the lemon

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

  1. Figfits better
  2. Coconutfits better
  3. Blueberryfits better
  4. Lemonthe original

Fit is the average pairing score against milk, sugar, egg, corn, vanilla. 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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