Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Puree of Green Pea
Ingredients
Directions
Prepare the peas
Cook the peas in water until tender; drain and rub through a sieve.
Make the puree
In a saucepan, melt the butter and stir in the flour until combined.
Add the stock and stir until thickened.
Mix in the peas and the water they were cooked in; simmer for five minutes.
Serve
Season with salt and pepper, then serve.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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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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Butter + peastop 16% of all pairsSmell alikemoderateCooked together4,887 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Veal + peppertop 19% of all pairsSmell alikemoderateCooked together10,049 recipes
Shared aroma: 2-nonenal (fatty, green).
Butter and flour 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
- Butter
- Provides fat and rich flavor, and forms the base of the thickening paste with flour.
- Flour
- Thickens the liquid when cooked with butter and stock, giving the puree body.
- White stock
- Forms the main liquid, adding savory flavor that thins the puree to a pourable texture.
- Green peas
- Supply the main flavor and color, and their starch helps thicken the finished puree.
The step that matters
Adding the stock to the butter and flour. Flour clumps easily in hot fat. Adding the stock gradually while stirring keeps the mixture smooth, so the sauce thickens evenly instead of forming lumps.
Swap the peas
How well each one fits the dish's main ingredients (butter, veal, flour, pepper):
- Almondfits better
- Chestnutfits better
- Walnutfits better
- Peasthe original
Fit is the average pairing score against butter, veal, flour, 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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