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 Pudding
Ingredients
Directions
Prepare
Boil a large saucepan of water.
Chop the suet finely after removing the skin.
In a bowl, combine flour, salt, and baking powder.
Add the chopped suet and ground ginger, mixing well.
In another bowl, mix treacle, milk, and egg together.
Make and cook the pudding
Stir the wet mixture into the dry ingredients, adding more milk if needed to achieve a stiff batter.
Grease a quart basin and pour the mixture in, ensuring it's full to prevent water from spoiling the pudding.
Sprinkle flour on top, cover with a cloth, and tie it tightly with string.
Once the water is boiling, place the pudding in and boil for two hours.
Serve
To serve, remove the pudding from the saucepan, take off the cloth, and invert it onto a hot dish.
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.
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Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + gingertop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Ginger + milktop 19% of all pairsSmell alikemoderateCooked 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
- Suet
- Adds fat that keeps the pudding moist and gives it a rich, tender crumb.
- All-purpose flour
- Provides the starch and structure that hold the pudding together as it steams.
- Baking powder
- Releases gas during steaming, helping the pudding rise and become light.
- Treacle
- Adds sweetness, dark color, and a deep molasses-like flavor.
- Egg
- Binds the batter and helps set the structure as it cooks.
The step that matters
Keeping the basin full and the water boiling. A full basin leaves no room for steam or water to seep in and make the pudding soggy. Keeping the water boiling maintains steady steam heat for even cooking over the two hours.
Swap the ginger
How well each one fits the dish's main ingredients (flour, milk, egg):
- Nutmegfits better
- Cinnamonfits better
- Jalapenofits better
- 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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