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Welsh Rarebit

A cheese sauce made with corn starch, cream, mild cheese, butter, salt, and mustard, served hot on toast or crackers.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Welsh Rarebit

Ingredients

Directions

Make the sauce

  1. Melt the butter in a saucepan.

  2. Add the corn starch and stir until well mixed.

  3. Gradually add the cream and cook for 2 minutes.

Finish and serve

  1. Add the cheese cut into small pieces and stir until melted.

  2. Season with salt and mustard, then serve hot on toast or crackers.

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. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  2. Cheese + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together7,962 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Cheese + mustardtop 11% of all pairs
    Smell alikemoderate
    Cooked together1,805 recipes

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

  4. Corn + mustardtop 12% of all pairs
    Smell alikemoderate
    Cooked together463 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

  5. Corn + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together7,345 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cheese
Melts into the sauce to provide the main flavor and rich, creamy body.
Cream
Adds moisture and richness so the sauce stays smooth and pourable.
Corn starch
Thickens the liquid into a smooth sauce that helps hold the cheese evenly.
Butter
Adds fat and flavor, and forms the base the starch is stirred into.

The step that matters

Adding the cheese. Cheese turns stringy or grainy if it overheats or boils, so it should be added in small pieces and stirred over gentle heat until just melted.

Swap the mustard

How well each one fits the dish's main ingredients (corn, cream, cheese, butter):

  1. Potatofits better
  2. Capsicumfits better
  3. Asparagusfits about as well
  4. Mustardthe original

Fit is the average pairing score against corn, cream, cheese, butter. 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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