Why it works: Spinach and pepper are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 3,400 recipes. Both carry nonanal, which smells fat, citrus. The science ↓
Spinach and Egg Salad
Ingredients
Directions
Prepare
Wash the spinach thoroughly to remove grit and dry it well.
Mix the spinach with the chopped onions.
Dress and serve
In a small bowl, combine the oil, vinegar, salt, and pepper.
Pour the dressing over the spinach and mix well.
Transfer to a salad bowl and garnish with sections of hard-boiled egg before 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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Spinach + peppertop 6% of all pairsSmell alikemoderateCooked together3,400 recipes
Shared aroma: nonanal (fat, citrus).
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Spinach + oniontop 8% of all pairsSmell alikestrongCooked together3,336 recipes
Shared aroma: coumarin (sweet, hay).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Young spinach leaves
- Forms the bulk of the salad and provides its leafy, tender texture.
- Spring onions
- Add a sharp, aromatic bite that cuts through the richness of the egg.
- Hard-boiled eggs
- Add richness and a soft, creamy texture to the salad.
- Oil
- Carries fat-soluble flavour and coats the leaves for a smooth mouthfeel.
- Vinegar
- Adds acidity that brightens the dressing and balances the oil.
Swap the onion
How well each one fits the dish's main ingredients (spinach, egg, vinegar, pepper):
- Capsicumfits better
- Mustardfits better
- Cucumberfits better
- Onionthe original
Fit is the average pairing score against spinach, egg, vinegar, 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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