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Dessert

Breakfast

A custard made from milk, arrowroot, butter, egg yolks, sugar, and vanilla.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Arrowroot and vanilla match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 242 recipes. Both carry coumarin, which smells sweet, hay. The science ↓

Breakfast

Ingredients

Directions

Make the custard

  1. Heat the milk in a saucepan until boiling.

  2. Stir in the arrowroot mixed with a little cold milk.

  3. Add the butter and mix well.

  4. Pour this mixture over the beaten yolks and sugar.

  5. Return to the heat and stir for one minute to warm the yolks without curdling.

Serve

  1. Pour into a sauceboat, flavor with vanilla, and set in hot water until ready to serve.

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. Arrowroot + vanillatop 3% of all pairs
    Smell alikestrong
    Cooked together242 recipes

    Shared aroma: coumarin (sweet, hay).

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

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

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

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

  5. Butter + vanillatop 14% of all pairs
    Smell alikemoderate
    Cooked together20,050 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

Milk
Forms the liquid base that the custard thickens and sets in.
Arrowroot
Thickens the milk into a smooth, glossy sauce without making it cloudy.
Egg yolks
Add richness and help the custard thicken and set as they warm.
Butter
Adds fat for a rich, smooth texture and mouthfeel.
Sugar
Adds sweetness and balances the richness of the yolks and butter.

The step that matters

Returning the mixture to the heat. Egg yolks thicken when warmed gently but curdle if they get too hot. Stirring constantly for one minute warms them slowly, so the custard thickens smoothly instead of turning grainy.

Swap the arrowroot

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

  1. Sweet potatofits about as well
  2. Arrowrootthe original
  3. Potatofits about as well
  4. Capsicumfits about as well

Fit is the average pairing score against milk, butter, egg, sugar, 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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