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Curry of Mutton

A curry made with cooked mutton, onions, curry powder, butter, flour, stock, and lemon juice.

From an old cookbook · modernised transcription
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Why it works: Lemon and pepper match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Curry of Mutton

Ingredients

Directions

Make the curry

  1. In a pan, melt the butter and brown the chopped onion with the curry powder.

  2. Add the flour and stir until smooth and browned.

  3. Pour in the stock and add the mutton.

  4. Cook until the sauce thickens, then season with salt, pepper, and lemon juice.

Serve

  1. Serve hot.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Lemon + peppertop 3% of all pairs
    Smell alikestrong
    Cooked together27,047 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  2. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Butter + oniontop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Mutton + peppertop 16% of all pairs
    Smell alikelow
    Cooked together5,442 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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
Provides the main protein, which becomes tender as it simmers in the sauce.
Flour
Thickens the sauce as it cooks with the butter and stock.
Butter
Carries the curry powder and adds richness to the sauce.
Stock
Forms the liquid base of the sauce.
Onion
Adds savoury sweetness as it browns in the butter.

The step that matters

Browning the flour. Stirring the flour until it turns lightly browned cooks out its raw taste and adds nutty depth. Stop before it darkens too far, or the sauce turns bitter and loses its smooth thickness.

Swap the onion

How well each one fits the dish's main ingredients (mutton, butter, flour, lemon, pepper):

  1. Shallotfits better
  2. Leekfits better
  3. Spinachfits better
  4. Onionthe original

Fit is the average pairing score against mutton, butter, flour, lemon, 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.

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