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
In a bowl, whisk together the egg, grated cheese, butter, salt, and cayenne.
Cook the mixture over low heat, stirring constantly, until smooth and creamy.
Serve
Spread the mixture on toasted bread and serve immediately.
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.
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Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Cheese + peppertop 18% of all pairsSmell alikemoderateCooked together7,861 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Egg + cheesetop 28% of all pairsSmell alikemoderateCooked 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
- Thickens and sets the mixture as it heats, giving it a creamy body.
- Grated cheese
- Provides the main flavour and melts into the sauce for a rich, savoury texture.
- Butter
- Adds richness and helps the mixture stay smooth and glossy as it cooks.
The step that matters
Cook over low heat, stirring constantly. Egg proteins set when heated, so high heat or pausing to stir can scramble the egg and leave lumps. Gentle heat and constant stirring keep the mixture smooth and creamy.
“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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