Why it works: Flour and capers match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 1,024 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Leg of Mutton
Ingredients
Directions
Prepare the mutton
Bring a large saucepan of water to a boil.
If the mutton is freshly killed, beat it with a rolling pin to soften the fibers.
If the mutton is not freshly killed, let it hang for a week if possible.
Plunge the mutton into the boiling water.
Let it boil once, then remove from heat.
Cover the saucepan.
Let it simmer slowly, keeping the water bubbling gently, for 15 minutes per pound plus an additional 15 minutes.
Make the sauce
Fifteen minutes before the mutton is done, melt the butter in a saucepan.
Stir in the flour.
Add 1½ cups of the boiling liquid from the mutton, along with the milk, salt, and pepper.
Cook for 2 minutes to thicken.
Serve
Remove the mutton and place it on a hot platter.
Pour the sauce over it.
Add the capers just before serving.
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.
-
Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Pepper + caperstop 12% of all pairsSmell alikemoderateCooked together2,088 recipes
Shared aroma: coumarin (sweet, hay).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mutton leg
- Forms the main body of the dish, becoming tender through long gentle simmering.
- Butter
- Enriches the sauce and carries flavor while the flour is cooked into it.
- Flour
- Thickens the sauce as its starch swells in the hot liquid.
- Milk
- Adds body and creaminess to the sauce, softening its flavor.
- Capers
- Add a sharp, briny acidity that cuts the richness of the mutton and sauce.
The step that matters
Simmer gently, do not boil hard. A hard rolling boil toughens meat fibers and can make the outside tough and dry before the inside is tender. Keeping the water barely bubbling lets connective tissue break down slowly and evenly, so the mutton stays moist and tender throughout.
Swap the capers
How well each one fits the dish's main ingredients (mutton, butter, flour, milk, pepper):
- Cardamomfits better
- Cinnamonfits better
- Nutmegfits better
- Capersthe original
Fit is the average pairing score against mutton, butter, flour, milk, pepper. 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
Mutton Broth292 recipes
Haricot Mutton59 recipes
Mutton Soup56 recipes
Curried Mutton9 recipesThe 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.