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Dessert

Sponge Cake Custard

A custard made by mixing stale sponge cake with eggs and boiling milk, flavored with lemon peel and sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and lemon are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 19,053 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Sponge Cake Custard

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Grate stale sponge cake and place it in a dish.

  2. Whisk the eggs until very light.

Make the custard

  1. Pour the boiling milk over the whisked eggs.

  2. Season the mixture with lemon peel to taste.

  3. Add sugar to taste and mix well.

Bake and serve

  1. Bake in a slow oven at 300°F (150°C) for twenty minutes.

  2. Cover the top with more sponge cake.

  3. Pile icing high in the center.

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 + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

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

  2. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  4. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 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).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
Set the custard into a soft, sliceable structure as the proteins firm when heated.
Milk
Provides the liquid that gives the custard its moisture and smooth, tender texture.
Stale sponge cake
Forms the base that soaks up the custard and gives the dish its crumb.
Sugar
Adds sweetness and helps balance the flavor of the eggs and milk.
Lemon peel
Adds a bright citrus aroma to the custard.

The step that matters

Bake in a slow oven at 300°F (150°C) for twenty minutes.. Eggs set gently at a low, steady heat. Too much heat makes the proteins tighten and squeeze out water, leaving the custard grainy or watery.

Swap the lemon

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

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

Fit is the average pairing score against egg, milk, 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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