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Sponge Cake Filling

A sweet milk-based filling for sponge cake.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Sponge Cake Filling

Ingredients

Directions

Make the custard

  1. Boil 1 pint of milk in a saucepan.

  2. In a bowl, mix ¾ cup sugar and 2 heaping tablespoons flour.

  3. Add 2 eggs and a little cold milk to the sugar and flour mixture, and mix well.

  4. Once the milk is boiling, add the mixture to the saucepan.

  5. Cook until thick, then let it cool.

Assemble

  1. Spread the filling between layers of sponge cake.

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 + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Milk + eggtop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. Milk + sugartop 18% of all pairs
    Smell alikelow
    Cooked together77,875 recipes

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

Milk and flour barely smell alike, yet cooks put them together in 78,219 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 of the custard that thickens when heated.
Sugar
Sweetens the filling and helps keep it smooth and soft.
Flour
Thickens the custard as it heats, giving it body.
Eggs
Add richness and help set the custard as it cooks.

The step that matters

Adding the egg mixture to boiling milk. Eggs can scramble if they meet very hot liquid without enough stirring. Mixing the eggs with sugar, flour and cold milk first tempers them, and stirring as the custard thickens keeps it smooth.

“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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