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Welsh Rarebit

A cheese sauce made with soft cheese, eggs, milk, and seasonings, served over buttered toast.

From an old cookbook · modernised transcription
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Why it works: Cheese and milk are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 4,426 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Welsh Rarebit

Ingredients

Directions

Make the sauce

  1. Grate the cheese and place it in a saucepan.

  2. Add salt, pepper, beaten eggs, and milk to the saucepan.

  3. Stir the mixture over low heat until the cheese is melted.

Serve

  1. Pour the cheese mixture over the hot buttered toast and serve immediately.

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

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

  2. Cheese + peppertop 18% of all pairs
    Smell alikemoderate
    Cooked together7,861 recipes

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

  3. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

    Shared aroma: 2-nonenal (fatty, green).

  4. Pepper + milktop 22% of all pairs
    Smell alikemoderate
    Cooked together26,984 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

  5. Cheese + eggtop 28% of all pairs
    Smell alikemoderate
    Cooked together6,253 recipes

    Shared aroma: 2-nonenal (fatty, green).

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

What each ingredient does

Soft cheese
Melts into the sauce and provides the main flavour and creamy body.
Eggs
Thicken the cheese mixture as they set gently with the heat, giving it body.
Milk
Loosens the mixture so it spreads smoothly and stays creamy rather than grainy.

The step that matters

Stir the mixture over low heat until the cheese is melted. High heat can make cheese tight and grainy, and it can scramble the eggs. Gentle, steady heat lets the cheese melt evenly into a smooth sauce while the eggs thicken it slowly.

“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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