Why it works: Lettuce and spinach match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 427 recipes mention both. Both carry 2-isobutyl-3-methoxypyrazine, which smells green bell pepper, earthy. The science ↓
A Very Good Green Pease Soup, Maigre
Ingredients
Directions
Prepare the peas
Dissolve the bread in water.
Shell the peas, keeping old and young separate.
Boil the old peas in the bread water until tender, then pulp them through a colander while warm.
Set the pulp aside and retain the water.
In the retained water, boil the young peas with sweet herbs, cloves, mace, white pepper, and salt.
Make the soup
In a frying pan, melt the butter and add the chopped lettuces, spinach, parsley, onions, and cucumbers.
Stew the vegetables in the butter until tender, then transfer them to the boiling pea water.
Boil for 30 minutes, then add the reserved pulped peas and bread, boiling for a short time longer.
Adjust thickness with additional water as needed.
Before serving, stir in a few ounces of butter.
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 aroma chemistry they share, and how many recipes mention both.
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Lettuce + spinachtop 1% of all pairsAroma overlapstrongMentioned together427 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Peas + lettucetop 5% of all pairsAroma overlapstrongMentioned together1,293 recipes
Shared aroma: 2-isobutyl-3-methoxypyrazine (green bell pepper, earthy).
-
Clove + macetop 6% of all pairsAroma overlaplowMentioned together8,400 recipes
Shared aroma: methyleugenol (clove, spice).
-
Bread + buttertop 7% of all pairsAroma overlapmoderateMentioned together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Clove + lettucetop 8% of all pairsAroma overlapstrongMentioned together486 recipes
Shared aroma: 2-nonanone (fruity, floral).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green peas
- Provide the main body and sweet, vegetal flavour of the soup when pulped.
- Butter
- Adds richness and a silky mouthfeel, and carries flavour from the stewed vegetables.
- Bread
- Thickens the soup and helps give it a smooth, body-rich texture when pulped in.
- Lettuces
- Softened in butter, they contribute gentle sweetness and moisture to the soup.
- Spinach
- Softened in butter, it adds earthy flavour and a deeper green colour.
- Sweet herbs
- Infused into the boiling pea water to add aromatic flavour.
The step that matters
Pulping the old peas while warm. Pulping while warm lets the starchy peas break down easily into a smooth purée; once cooled they firm up and resist passing through a colander, leaving a grainy texture.
Flavor stand-ins for the white pepper
How well each one fits the dish's main ingredients (peas, bread, clove, mace, butter, lettuce, spinach):
- Nutmegbetter flavor fit
- Cinnamonbetter flavor fit
- Tarragonbetter flavor fit
- White pepperthe original
Fit is the average pairing score against peas, bread, clove, mace, butter, lettuce, spinach. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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