Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Tomatoes on Toast
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
In a buttered sauté pan or baking dish, layer the sliced tomatoes.
Bake
Season with salt, pepper, and lemon juice.
Sprinkle the bread crumbs over the tomatoes.
Place a small piece of butter on each tomato slice.
Bake for 15 minutes.
Serve
Prepare buttered toast and place the baked tomatoes on top.
Pour the pan juices over the dish 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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + breadtop 10% of all pairsSmell alikemoderateCooked together1,013 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the main body and juices that soften and collect in the pan during baking.
- Butter
- Adds richness and fat, helping the tomatoes and crumbs brown lightly in the oven.
- White bread crumbs
- Soak up the tomato juices and form a light, slightly crisp topping as they bake.
- Lemon juice
- Adds acidity that brightens the sweetness of the tomatoes.
Swap the tomato
How well each one fits the dish's main ingredients (pepper, lemon, bread, butter):
- Capsicumfits about as well
- Asparagusfits about as well
- Shallotfits about as well
- Tomatothe original
Fit is the average pairing score against pepper, lemon, 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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