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Dessert

Custard Filling

A thickened milk custard used as a filling between cake layers.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Custard Filling

Ingredients

Directions

Make the custard

  1. Dissolve cornstarch in a little milk.

  2. Combine with scant cup of milk and butter in a double boiler.

  3. Stir until it begins to thicken.

  4. Beat egg yolks and sugar until very light.

  5. Pour some of the boiling custard onto the egg mixture.

  6. Return the mixture to the double boiler and stir for a few minutes, adding flavoring.

Assemble and finish

  1. When cool, spread between layers of cake and sprinkle with coconut or ground nuts.

  2. Cover the top of the cake with a thin layer of custard and sprinkle with nuts.

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

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

  2. Milk + coconuttop 10% of all pairs
    Smell alikemoderate
    Cooked together2,648 recipes

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

  3. Butter + coconuttop 12% of all pairs
    Smell alikemoderate
    Cooked together3,467 recipes

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

  4. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Cornstarch
Thickens the milk into a smooth custard as it heats.
Egg yolks
Enrich the custard and help it set as it cooks.
Butter
Adds richness and a smoother mouthfeel to the custard.
Sugar
Sweetens the custard and softens its flavor.
Milk
Forms the liquid base that thickens into the custard.

The step that matters

Returning the egg mixture to the double boiler. Egg yolks can scramble if they meet too much heat too fast. Pouring some hot custard onto the yolks first, then stirring gently over the double boiler, warms them gradually so the custard stays smooth and thickens evenly.

Swap the coconut

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

  1. Vanillafits better
  2. Figfits about as well
  3. Coconutthe original
  4. Peachfits about as well

Fit is the average pairing score against milk, butter, 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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