Why it works: Cucumber and tomato are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 2,405 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Tomatoes
Ingredients
Directions
Prepare the vegetables
Cut the cucumbers and onion into very small pieces.
Boil the cucumbers and onion until soft.
Make the filling
Add the peeled and chopped tomatoes, along with pepper and salt.
Boil until done.
If any is left, thicken it with bread crumbs.
Bake
Place in a deep dish.
Sprinkle with bread crumbs and a little butter on top.
Bake.
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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Cucumber + tomatotop 4% of all pairsSmell alikemoderateCooked together2,405 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cucumber + oniontop 8% of all pairsSmell alikestrongCooked together6,050 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cucumbers
- Provide the main bulk and a fresh, watery body that softens when boiled.
- Tomatoes
- Add moisture and acidity, thickening into a sauce as they cook down.
- Onion
- Adds savory depth and aroma as it softens.
- Bread crumbs
- Absorb excess liquid and thicken the mixture, then brown on top.
- Butter
- Adds fat and richness and helps the crumb topping brown.
The step that matters
Boil until done. Tomatoes and cucumbers release a lot of water. Cooking them down until thickened keeps the bake from being soupy, and the bread crumbs can only absorb so much liquid.
Swap the cucumber
How well each one fits the dish's main ingredients (onion, tomato, pepper, bread, butter):
- Capsicumfits better
- Potatofits better
- Carrotfits better
- Cucumberthe original
Fit is the average pairing score against onion, tomato, pepper, bread, butter. 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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