Why it works: Pepper and onion are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Peas Pudding
Ingredients
Directions
Prepare the peas
Soak the split peas overnight.
In the morning, place the peas and onion in a pot with enough water to cover them.
Boil for two hours or until soft.
Drain the peas and pass them through a colander.
Make and cook the pudding
Mix in the butter, pepper, salt, and eggs.
Pour the mixture into a buttered mold or floured cloth and boil for one hour.
Turn out the pudding and slice it for serving.
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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Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Peas + oniontop 13% of all pairsSmell alikemoderateCooked together5,460 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + oniontop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
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Peas + peppertop 15% of all pairsSmell alikemoderateCooked together5,331 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Peas + buttertop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Split peas
- Form the bulk of the pudding, and their starch thickens into a soft, set body as they cook and pass through a colander.
- Eggs
- Bind the mashed peas so the pudding holds its shape when turned out and sliced.
- Butter
- Adds richness and fat, giving the pudding a smoother, more tender mouthfeel.
The step that matters
Pass the cooked peas through a colander. Peas must be cooked until fully soft and then pushed through so no lumps or skins remain. Any grainy texture will carry into the set pudding, and the eggs will bind unevenly.
Swap the onion
How well each one fits the dish's main ingredients (peas, butter, egg, pepper):
- Asparagusfits better
- Capsicumfits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against peas, butter, egg, pepper. 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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