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Dessert

Treacle Sponge

A sponge cake made with flour, suet, baking powder, treacle, ginger, and milk, steamed for three hours.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and milk 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 ↓

Treacle Sponge

Ingredients

Directions

Prepare

  1. Mix flour, suet, baking powder, treacle, and ginger together.

  2. If the mixture is too stiff, add a little milk.

Steam and serve

  1. Pour into a buttered mold.

  2. Steam for 3 hours.

  3. Serve with sweet sauce.

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. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Flour + gingertop 15% of all pairs
    Smell alikemoderate
    Cooked together8,564 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Ginger + milktop 19% of all pairs
    Smell alikemoderate
    Cooked together4,519 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

Flour and milk 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

Flour
Provides the main structure that holds the pudding together as it cooks.
Suet
Adds fat that keeps the sponge tender and moist rather than dry.
Baking powder
Releases gas during cooking, helping the pudding rise and become light.
Treacle
Adds sweetness, moisture, and a deep, rich flavor and color.

The step that matters

Adjusting the milk. Flour soaks up liquid as it sits, so the batter can turn stiff. Add milk only when it is truly too stiff, because extra liquid makes the pudding heavy and dense once steamed.

Swap the ginger

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

  1. Jalapenofits better
  2. Cinnamonfits better
  3. Nutmegfits better
  4. Gingerthe original

Fit is the average pairing score against flour, milk. 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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