Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Spinach Soup
Ingredients
Directions
Prepare the spinach
Wash the spinach thoroughly.
Cook the spinach and onion in 1 pint of water with pepper and salt until the spinach is soft.
Rub the mixture through a sieve to create a smooth puree.
Make the soup
Mix the wheatmeal with the melted butter until smooth.
Stir the spinach puree into the wheatmeal mixture.
Add the milk to the mixture.
Bring the soup to a boil.
Add the lemon juice.
If the soup is too thick, add a little water to reach desired consistency.
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.
Photo for illustrative purposes only · Contact us to use it
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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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Spinach + lemontop 6% of all pairsSmell alikestrongCooked together1,109 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Spinach + peppertop 6% of all pairsSmell alikemoderateCooked together3,400 recipes
Shared aroma: nonanal (fat, citrus).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Spinach + oniontop 8% of all pairsSmell alikestrongCooked together3,336 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Spinach
- Forms the body and green colour of the soup once cooked and puréed.
- Wheatmeal
- Thickens the soup as it cooks with the butter and liquid.
- Butter
- Adds richness and fat, carrying flavour and smoothing the thickening base.
- Milk
- Adds creaminess and mild sweetness to the puréed soup.
- Lemon juice
- Adds acidity that brightens the flavour of the spinach.
The step that matters
Stirring the wheatmeal into the butter until smooth. Starch clumps form if flour or wheatmeal hits liquid unevenly; mixing it smoothly with fat first lets it disperse so the soup thickens without lumps.
Swap the onion
How well each one fits the dish's main ingredients (spinach, butter, milk, lemon, pepper):
- Asparagusfits better
- Potatofits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against spinach, butter, milk, lemon, 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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