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 ↓
French Way to Prepare Spinach
Ingredients
Directions
Prepare the spinach
Wash, pick, and press the spinach to remove water.
Boil the spinach until tender.
Make the batter
In a bowl, beat the eggs until light and mix in the powdered crackers.
Stir the spinach into the batter, thinning with cream or drawn butter and milk until the desired consistency is reached.
Season and finish
Season with pepper, coarse sea salt, herbs, and sliced onions.
Garnish with toasted bread slices or poached eggs, or sprinkle bread crumbs on top and brown in the oven.
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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Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
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Onion + breadtop 15% of all pairsSmell alikemoderateCooked together8,676 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Pepper + breadtop 16% of all pairsSmell alikemoderateCooked together20,964 recipes
Shared aroma: 2-nonenal (fatty, green).
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Cream + oniontop 18% of all pairsSmell alikelowCooked together10,827 recipes
Shared aroma: 2-nonanone (fruity, floral).
Cream and onion barely smell alike, yet cooks put them together in 10,827 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
- Eggs
- Set the batter into a firm, sliceable custard when heated.
- Powdered crackers
- Absorb liquid and give the bake body and a soft, binding texture.
- Spinach (in the method)
- Adds bulk, color, and a mild vegetable flavor to the batter.
- Cream or drawn butter and milk
- Adds moisture and richness, loosening the batter to the desired consistency.
- Onions
- Add savory aroma and a mild sweetness as they soften in the bake.
The step that matters
Press the spinach dry. Excess water from the spinach thins the egg mixture and stops it setting firmly, leaving the bake soggy or weeping. Squeezing out water after boiling keeps the custard texture even and the bake sliceable.
Swap the onion
How well each one fits the dish's main ingredients (egg, cream, pepper, bread):
- Spinachfits better
- Capsicumfits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against egg, cream, pepper, bread. 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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