Why it works: Mustard and allspice match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 1,928 recipes. Both carry methyleugenol, which smells clove, spice. The science ↓
Tomato Soy
Ingredients
Directions
Prepare
Slice the tomatoes and sprinkle the salt over them. Let them stand for 24 hours.
Cook
Drain the tomatoes and place them in a porcelain-lined kettle with the onions and spices.
Cover with cold vinegar and boil until perfectly soft, stirring often to prevent burning.
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.
-
Mustard + allspicetop 2% of all pairsSmell alikestrongCooked together1,928 recipes
Shared aroma: methyleugenol (clove, spice).
-
Pepper + allspicetop 5% of all pairsSmell alikestrongCooked together6,395 recipes
Shared aroma: estragole (anise, licorice).
-
Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Green tomatoes
- Form the bulk of the pickle and soften into a soft, spreadable texture when boiled.
- Coarse sea salt
- Draws water out of the sliced tomatoes, firming them and concentrating their flavor before cooking.
- White mustard seed
- Adds sharp, pungent flavor that mellows during the long simmer in vinegar.
- Sliced onions
- Contribute sweetness and savory depth as they soften into the mixture.
- Vinegar
- Provides acidity that preserves the mixture and sharpens its flavor.
The step that matters
Boil until perfectly soft, stirring often. Stirring prevents the sugars and solids from sticking and scorching on the bottom of the kettle, which would give a burnt taste. Long boiling is needed to break the tomatoes down fully.
Swap the tomato
How well each one fits the dish's main ingredients (mustard, pepper, allspice, onion, vinegar):
- Horseradishfits better
- Shallotfits better
- Broccolifits better
- Tomatothe original
Fit is the average pairing score against mustard, pepper, allspice, onion, vinegar. 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.
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