Why it works: Parsley and celery match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 6,810 recipes mention both. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Tomato Jelly
Ingredients
Directions
Make the tomato base
Stew the canned tomatoes with onion, parsley, cloves, mace, and celery for 20 minutes.
Strain the mixture through a sieve and return the liquid to the fire.
Add vinegar, sugar, salt, and paprika to the liquid.
Set the jelly
Soften the gelatin in a little cold water.
Stir the softened gelatin into the mixture until dissolved, but do not boil.
Pour the mixture into a shallow pie tin and set on ice until firm.
Unmould and serve
Place the tin in hot water briefly to loosen the jelly.
Cut the jelly into heart shapes and remove from the dish.
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 aroma chemistry they share, and how many recipes mention both.
-
Parsley + celerytop 1% of all pairsAroma overlapstrongMentioned together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Tomato + celerytop 4% of all pairsAroma overlapmoderateMentioned together3,377 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Clove + celerytop 6% of all pairsAroma overlapstrongMentioned together4,668 recipes
Shared aroma: gamma-decalactone (peach, creamy).
-
Parsley + clovetop 6% of all pairsAroma overlapstrongMentioned together6,768 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
-
Clove + macetop 6% of all pairsAroma overlaplowMentioned together8,400 recipes
Shared aroma: methyleugenol (clove, spice).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Canned tomatoes
- Provide the main body, flavour and colour of the jelly.
- Gelatin
- Sets the liquid into a firm, sliceable jelly as it cools.
- Vinegar
- Adds acidity that sharpens the flavour and balances the sweetness.
- Sugar
- Adds sweetness that rounds out the vinegar and tomato tang.
The step that matters
Stirring the gelatin in without boiling. Gelatin must be fully dissolved into the warm liquid but boiling can weaken its setting power and make the jelly less firm. Keeping the mixture just warm lets the gelatin thicken evenly as it chills.
Flavor stand-ins for the mace
How well each one fits the dish's main ingredients (tomato, onion, parsley, clove, celery, vinegar, sugar):
- Thymebetter flavor fit
- Tarragonbetter flavor fit
- Allspicebetter flavor fit
- Macethe original
Fit is the average pairing score against tomato, onion, parsley, clove, celery, vinegar, sugar. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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