Why it works: Parsley and onion are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 25,843 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Gravy Kettle
Ingredients
Directions
Make the glaze
Pour a small quantity of liquid into the pan and reduce it by rapid boiling until it becomes a glaze.
Once the glaze has the proper color, add boiling broth in small portions and shake the pan to detach the glaze.
Stew
Stew the meat gently for 3-4 hours with mushrooms, parsley, and green onions or a Portugal onion.
Add thick slices of unboiled ham for richer flavor.
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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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mushroom + parsleytop 11% of all pairsSmell alikemoderateCooked together6,132 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Mushroom + hamtop 15% of all pairsSmell alikemoderateCooked together1,486 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Onion + hamtop 18% of all pairsSmell alikelowCooked together4,159 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Unboiled ham
- Adds meaty, savory flavor to the broth during the long stew.
- Mushrooms
- Contribute earthy flavor and moisture to the stew.
- Boiling broth
- Provides the liquid base and dissolves the glaze into the sauce.
- Green onions or portugal onion
- Add aromatic sweetness and depth as they soften in the stew.
The step that matters
Reducing the liquid to a glaze. Rapid boiling concentrates the liquid and caramelizes its sugars and proteins into a browned glaze. If it is under-reduced or burnt, the flavor is weak or bitter. Adding broth too quickly can stop the glaze from detaching cleanly.
Swap the parsley
How well each one fits the dish's main ingredients (mushroom, onion, ham):
- Garlicfits better
- Thymefits better
- Celeryfits better
- Parsleythe original
Fit is the average pairing score against mushroom, onion, ham. 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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