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 ↓
Boiled Spinach
Ingredients
Directions
Prepare
Remove wilted leaves and roots from the spinach.
Wash the spinach thoroughly in several waters.
Cook
If the spinach is young, cook it in a saucepan, bringing it gradually to a boil for 20 to 25 minutes until tender in its own juices.
For older spinach, cook it in 2 quarts of boiling salted water.
Drain the spinach in a colander.
Chop the spinach finely.
Return the chopped spinach to the saucepan to reheat.
Season and serve
Season the spinach with butter, salt, and pepper.
Transfer the spinach to a serving dish in a mound shape.
Garnish with halves of hard-cooked eggs, cut sides facing out.
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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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Spinach + eggtop 22% of all pairsSmell alikelowCooked together2,323 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Spinach + buttertop 24% of all pairsSmell alikemoderateCooked together2,583 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Spinach
- Forms the dish's body; it wilts and turns tender as it cooks in its own juices or boiling water.
- Butter
- Adds fat and richness, coating the chopped spinach and carrying flavor.
- Hard cooked eggs
- Garnish that adds contrasting texture and a mild, rich flavor to the finished dish.
The step that matters
Cooking young versus older spinach. Young spinach is tender and cooks gently in its own juices, while older, tougher leaves need boiling salted water. Using the wrong method can leave leaves tough or overcooked and waterlogged.
Swap the spinach
How well each one fits the dish's main ingredients (pepper, butter, egg):
- Capsicumfits better
- Asparagusfits about as well
- Chivefits about as well
- Spinachthe original
Fit is the average pairing score against pepper, butter, egg. 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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