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Welsh Rarebit

A cheese-based spread made with egg, cheese, butter, salt, and cayenne, served on toast.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Cheese and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 7,962 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Welsh Rarebit

Ingredients

Directions

Make the mixture

  1. In a bowl, whisk together the egg, grated cheese, butter, salt, and cayenne.

  2. Cook the mixture over low heat, stirring constantly, until smooth and creamy.

Serve

  1. Spread the mixture on 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 + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together7,962 recipes

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

  2. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Egg + cheesetop 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

Egg
Sets with gentle heat to give the mixture body and a creamy, custard-like structure.
Grated cheese
Melts into the mixture to add rich flavor and a smooth, spreadable texture.
Butter
Adds fat that enriches the mixture and helps it stay smooth and glossy.

The step that matters

Cook over low heat while stirring constantly. Egg proteins set gradually, so low heat and constant stirring keep the mixture smooth. Too much heat or sitting still can scramble the egg into lumps instead of a creamy sauce.

“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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