Why it works: Thyme and pepper are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 11,585 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓
Stewed Ox Heart
Ingredients
Directions
Prepare and brown
Divide the ox heart in half and dust it with flour.
Fry the heart in a pan until browned on both sides.
Stew
Place the heart in a saucepan and cover with water.
Add thyme, pepper, salt, and onions to the saucepan.
Simmer for 2 hours or until the heart is tender.
Thicken and season
To thicken the gravy, mix flour with a little cold water and stir in.
Adjust seasoning with salt, pepper, and a pinch of brown sugar if needed.
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.
-
Thyme + peppertop 4% of all pairsSmell alikemoderateCooked together11,585 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Thyme + oniontop 7% of all pairsSmell alikemoderateCooked together11,171 recipes
Shared aroma: coumarin (sweet, hay).
-
Pepper + oniontop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Flour + thymetop 14% of all pairsSmell alikemoderateCooked together5,721 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ox heart
- Main meat that becomes tender through long, slow simmering.
- Flour
- Dusting helps the heart brown, and flour mixed with water thickens the gravy.
- Onions
- Soften during simmering and add sweetness and body to the gravy.
The step that matters
Simmer for 2 hours or until the heart is tender. Ox heart is a tough, muscular meat. Long, gentle simmering breaks down its connective tissue, so the heart becomes tender. Boiling hard can toughen the meat, so keep the liquid at a gentle simmer.
Swap the onion
How well each one fits the dish's main ingredients (flour, thyme, pepper, sugar):
- Parsnipfits better
- Shallotfits better
- Arrowrootfits better
- Onionthe original
Fit is the average pairing score against flour, thyme, pepper, 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes
Yorkshire Pudding264 recipes