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Welsh Rare-bit

A savory toast topped with a cheese‑milk mixture.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Bread and cheese 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 Rare-bit

Ingredients

Directions

Prepare

  1. Cut the bread into even slices and toast them.

  2. Heat the milk in a saucepan for thickening while the toast is made.

Make the topping

  1. In a bowl, beat the egg yolk and mix in the cheese and salt.

  2. Add the flour to the milk and stir until thickened.

Serve

  1. Pour the cheese mixture over the toast and serve.

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. Bread + cheesetop 7% of all pairs
    Smell alikemoderate
    Cooked together2,130 recipes

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

  2. Cheese + milktop 10% of all pairs
    Smell alikemoderate
    Cooked together4,426 recipes

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

  3. Bread + milktop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Bread + eggtop 13% of all pairs
    Smell alikemoderate
    Cooked together22,662 recipes

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

  5. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Milk and flour barely smell alike, yet cooks put them together in 78,219 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

Bread
Provides the toasted base that holds the cheese topping.
Grated cheese
Melts into the sauce to give rich flavor and a smooth, savory texture.
Milk
Forms the liquid base of the sauce that the flour thickens.
Egg yolk
Adds richness and helps bind the cheese mixture smoothly.
Flour
Thickens the milk so the sauce clings to the toast.

The step that matters

Add the flour to the milk and stir until thickened. Flour must be stirred into warm milk until the starch swells and thickens the liquid. If it is added too quickly or not stirred enough, lumps can form and the sauce will not become smooth.

“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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