Why it works: Ginger and lemon match in chemistry and in kitchens. They rank in the top 5% of all ingredient pairs, and cooks put them together in 5,154 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Ripe Tomato Preserves
Ingredients
Directions
Peel and quarter the tomatoes.
In a pot, combine the tomatoes and sugar.
Add the ground ginger and bring to a boil.
Once boiling, add the sliced lemons.
Boil until the mixture reaches a clear red color.
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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Ginger + lemontop 5% of all pairsSmell alikestrongCooked together5,154 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Tomato + gingertop 10% of all pairsSmell alikemoderateCooked together1,887 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Sugar + gingertop 17% of all pairsSmell alikelowCooked together14,054 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and ginger barely smell alike, yet cooks put them together in 14,054 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Tomatoes
- Provide the bulk and fruity flavor of the preserve, and pectin-bearing pulp that helps it thicken.
- Sugar
- Sweetens the preserve and, at high concentration, helps it set and keeps it stable.
- Lemons
- Add acidity that brightens the flavor and supports gel formation.
- Ground ginger
- Adds warm, aromatic spice that flavors the preserve.
The step that matters
Boil until the mixture reaches a clear red color. Cooking long enough drives off water and concentrates the sugar so the preserve thickens. Stopping too early leaves it runny, while overcooking can scorch the sugar and darken the flavor.
Swap the tomato
How well each one fits the dish's main ingredients (sugar, ginger, lemon):
- Arrowrootfits better
- Sweet potatofits better
- Broccolifits better
- Tomatothe original
Fit is the average pairing score against sugar, ginger, lemon. 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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