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Welsh Rabbit

A cheese and mustard sauce served over toasted bread.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Cheese and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,130 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Welsh Rabbit

Ingredients

Directions

Make the sauce

  1. In a saucepan, combine mustard, milk, and salt.

  2. Add the cheese and place over medium heat.

  3. Stir until the cheese and milk are thoroughly mixed.

Serve

  1. Pour the mixture over the toasted bread and 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. Cheese + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together2,130 recipes

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

  2. Milk + cheesetop 10% of all pairs
    Smell alikemoderate
    Cooked together4,426 recipes

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

  3. Milk + breadtop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Mustard + cheesetop 11% of all pairs
    Smell alikemoderate
    Cooked together1,805 recipes

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

  5. Mustard + breadtop 16% of all pairs
    Smell alikemoderate
    Cooked together1,484 recipes

    Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).

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

What each ingredient does

Mild cheese
Melts into the sauce and provides the main body, fat, and savory flavor.
Milk
Provides the liquid that turns the melted cheese into a smooth, pourable sauce.
Mustard
Adds sharpness and aroma that balance the richness of the cheese.

The step that matters

Stir the cheese over medium heat. High heat makes cheese proteins tighten and fat separate, leaving the sauce grainy or oily. Gentle heat and steady stirring keep it smooth.

Swap the mustard

How well each one fits the dish's main ingredients (milk, cheese, bread):

  1. Tomatofits better
  2. Potatofits better
  3. Capsicumfits better
  4. Mustardthe original

Fit is the average pairing score against milk, cheese, bread. 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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