Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Black and White Pudding
Ingredients
Directions
Make the batter
Beat the egg yolks until light, then add the molasses.
Sift the flour and baking soda together, then add to the mixture alternately with the warm water.
Fold in the raisins, currants, or chopped dates if desired.
Steam
Place the mixture in individual cups or one mold and steam until cooked through.
Sauce and serving
Cream together the confectioners’ sugar and butter until frothy.
Fold in the stiffly beaten egg whites, then chill before serving.
Serve the pudding hot with the sauce.
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 + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Molasses + sugartop 11% of all pairsSmell alikemoderateCooked together9,225 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Molasses + raisintop 12% of all pairsSmell alikelowCooked together3,577 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Raisin + sugartop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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 starch and structure that hold the pudding together after steaming.
- Baking soda
- Reacts with the molasses to produce gas that lifts and lightens the batter.
- Dark molasses
- Adds moisture, dark color, and a deep, slightly acidic sweetness.
- Egg yolks
- Add richness and help bind the batter into a tender, cohesive crumb.
- Egg whites
- Whipped and folded in, they trap air that gives the pudding a lighter texture.
- Butter
- Adds fat that makes the creamed sugar mixture smooth and rich in flavor.
The step that matters
Folding in the stiffly beaten egg whites. Whites hold air only until they are overmixed or deflated. Fold gently with a broad motion so the air stays trapped, which keeps the pudding light rather than dense.
“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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