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Dessert

Treacle Sponge

A steamed sponge cake made with flour, ginger, baking soda, treacle, milk, and egg, served with a treacle sauce.

From an old cookbook · modernised transcription
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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

Oven, in the book's wordsA moderate oven

Ingredients

Directions

Make the batter

  1. Mix flour, ginger, and baking soda in a basin with your fingers.

  2. Melt treacle in a saucepan until warm, then pour it into the flour mixture.

  3. Add milk and the beaten egg, then mix well.

Steam and serve

  1. Pour the mixture into a greased mold and cover with greased paper.

  2. Steam for 2 hours.

  3. Melt some treacle in a saucepan.

  4. Flavor with lemon or vanilla.

  5. Add water to achieve the desired consistency.

  6. Serve in a boat or around the pudding.

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. 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. 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 structure that holds the pudding together as it steams.
Baking soda
Reacts to lighten the batter so the pudding rises and turns spongy.
Egg
Binds the batter and adds structure and richness to the crumb.
Treacle
Adds sweetness, moisture and a deep caramel flavor to the sponge.
Milk
Hydrates the flour and gives the batter its pourable, moist texture.

The step that matters

Steam for 2 hours. Steaming must stay gentle and continuous so the batter cooks through evenly and stays moist. Letting the water boil dry or drop too low can leave the sponge dense or undercooked.

Swap the ginger

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

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

Fit is the average pairing score against flour, milk, egg. 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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