Why it works: Lemon and parsley match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Savoury Vegetable Marrow
Ingredients
Directions
Prepare
Peel and cut the vegetable marrow in half, not lengthwise.
Blanch the tomatoes in boiling water, then in cold water to remove the skins, and chop roughly.
Make the filling
In a bowl, combine the chopped tomatoes, minced onions, lemon juice, salt, pepper, butter or suet, minced ham or bacon, minced parsley, and bread crumbs.
Bind the mixture with the beaten egg yolk and fill the two halves of the marrow.
Cook
Place each half in a separate well-buttered bag, mixture side up, and cook for 45 minutes.
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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Lemon + parsleytop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 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
- Vegetable marrow
- Forms the edible shell that holds the filling while it cooks.
- Tomatoes
- Add moisture and acidity that flavour the filling as it cooks.
- Bread crumbs
- Absorb liquid from the tomatoes and onions, giving the filling body.
- Egg yolk
- Binds the filling so it holds together when spooned into the marrow.
- Butter or suet
- Adds fat for richness and a softer, moister texture.
- Onions
- Contribute savoury sweetness and aroma to the filling.
The step that matters
Binding the filling with egg yolk. Egg yolk sets when heated and holds the crumbs and chopped vegetables together. If the mixture is too loose, it will run out of the marrow and cook unevenly, so mix it until evenly coated before filling.
Swap the onion
How well each one fits the dish's main ingredients (tomato, lemon, pepper, butter, ham, parsley, bread):
- Capsicumfits better
- Carrotfits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against tomato, lemon, pepper, butter, ham, parsley, bread. 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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