Why it works: Parsley and lemon 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 ↓
Sauce for Hashes of Mutton or Beef
Ingredients
Directions
Make the stock
Chop the bones and fragments of the joint.
Place the chopped bones in a stew-pan and cover with boiling water.
Add black pepper, allspice, parsley, celery, and savory.
Simmer gently for 30 minutes.
Make the sauce
In another stew-pan, fry the sliced onion in butter over medium heat for 2 minutes until slightly colored.
Stir in enough flour to make a stiff paste.
Gradually mix in the gravy from the bones.
Boil gently for 15 minutes until the sauce thickens to a cream-like consistency.
Strain the sauce into a basin.
Return the sauce to the stew-pan.
Season with pickled onions, walnuts, gherkins, mushroom ketchup, or capers.
Serve
Cover the bottom of the serving dish with toasted bread sippets to soak up the gravy.
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.
-
Parsley + lemontop 1% of all pairsSmell alikestrongCooked together14,037 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Parsley + celerytop 1% of all pairsSmell alikestrongCooked together6,810 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Allspice + parsleytop 3% of all pairsSmell alikestrongCooked together1,289 recipes
Shared aroma: estragole (anise, licorice).
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Flour
- Forms a stiff paste with the butter and onion, then thickens the gravy as it cooks.
- Butter
- Carries the onion's flavor and gives the roux a rich, smooth base.
- Bones and fragments of the joint
- Release gelatin and meaty flavor into the water, forming the body of the gravy.
- Mushroom ketchup
- Adds savory, umami depth to the finished sauce.
The step that matters
Stirring in the flour to a stiff paste. Flour must be cooked in the fat before the liquid goes in; if it is not, the sauce tastes raw and may form lumps. Gradual addition of the gravy and gentle boiling keep the sauce smooth as it thickens.
Swap the onion
How well each one fits the dish's main ingredients (pepper, allspice, parsley, celery, lemon, butter, flour):
- Carrotfits better
- Shallotfits better
- Parsnipfits better
- Onionthe original
Fit is the average pairing score against pepper, allspice, parsley, celery, lemon, butter, flour. 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.
More hash sauce recipes
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.
Brown Bread461 recipes
Lemon Sauce236 recipes
Cream of Celery Soup113 recipes
White Bread80 recipes