Why it works: Tomato and lemon are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 4,592 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Tomato Honey
Ingredients
Directions
Prepare the tomatoes
Weigh and cut the ripe yellow tomatoes into pieces.
Place them in a porcelain kettle.
For each pound of tomatoes, add the grated yellow rind of 1 lemon.
Simmer gently for 30 minutes.
Drain and press gently through cheesecloth.
Make the syrup
Measure the liquid and return it to the kettle.
For each pint of liquid, add 1 pound of granulated sugar and 4 tablespoons of lemon juice.
Boil for 20 to 30 minutes until a jelly‑like syrup forms.
Pour into bottles or tumblers for storage.
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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Tomato + lemontop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Tomato + sugartop 33% of all pairsSmell alikelowCooked together4,667 recipes
Shared aroma: beta-damascenone (apple, rose).
Lemon and sugar barely smell alike, yet cooks put them together in 53,532 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
- Ripe yellow tomatoes
- Provide the main body, juice and flavour of the syrup.
- Granulated sugar
- Sweetens the syrup and helps it thicken into a jelly-like consistency as it boils.
- Lemon juice
- Adds acidity that brightens the flavour and supports the syrup's set.
- Grated yellow rind of 1 lemon
- Adds aromatic lemon oils that scent the tomato liquid.
The step that matters
Boil until a jelly-like syrup forms. Sugar concentrates as water evaporates, and the syrup sets only at a high enough sugar concentration. Stopping too early leaves it thin, while boiling too long can over-thicken or scorch it.
Swap the tomato
How well each one fits the dish's main ingredients (lemon, sugar):
- Arrowrootfits better
- Sweet potatofits better
- Kalefits better
- Tomatothe original
Fit is the average pairing score against lemon, sugar. 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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