Why it works: Tomato and basil are a kitchen classic. They rank in the top 1% of all ingredient pairs, and cooks put them together in 3,979 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Tomato Salad
Ingredients
Directions
Prepare the tomatoes
Bake the tomatoes until just tender.
Cut the tomatoes into slices.
Remove all the seeds.
Assemble and marinate
Rub a dish with garlic and place the tomato slices in it.
Mix the oil and vinegar in a 2:1 ratio and pour over the tomatoes.
Sprinkle with pepper and coarse sea salt to taste, and add finely minced basil leaves.
Let the salad marinate in the sauce for 2 hours 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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Tomato + basiltop 1% of all pairsSmell alikemoderateCooked together3,979 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Basil + peppertop 4% of all pairsSmell alikestrongCooked together5,294 recipes
Shared aroma: methyl cinnamate (strawberry).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 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
- Tomatoes
- Provide the main body and juicy texture of the salad once baked and sliced.
- Oil
- Adds fat and carries flavour through the dressing, coating the tomato slices.
- Vinegar
- Adds acidity that brightens the dressing and balances the oil.
- Mustard
- Helps emulsify the oil and vinegar so the dressing holds together.
- Fresh basil leaves
- Contribute aroma and a fresh herbal flavour to the salad.
The step that matters
Let the salad marinate for 2 hours. The tomatoes need time in the acidic dressing so the flavours can soak into the slices. Serving too early leaves the salad tasting flat and the dressing sitting on top.
Swap the mustard
How well each one fits the dish's main ingredients (tomato, vinegar, basil, pepper):
- Capsicumfits better
- Eggplantfits better
- Cucumberfits better
- Mustardthe original
Fit is the average pairing score against tomato, vinegar, basil, 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.
More tomato salad recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Tomato Soup526 recipes
Cream of Tomato Soup107 recipes
Tomato Bisque61 recipes
Cream Tomato Soup28 recipes