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
Prepare the cheese
Cut the cheese into small strips or grate it if hard.
In a deep dish, combine the cheese and a lump of butter.
Heat on the stove until melted, stirring to mix with the butter.
Make the sauce
Whip the egg yolk with the Madeira wine.
Gradually add the egg mixture to the melted cheese, stirring until smooth.
Season with salt and pepper.
Serve
Spread the mixture on hot toast.
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.
-
Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Cheese + peppertop 18% of all pairsSmell alikemoderateCooked together7,861 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + peppertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Madeira wine + peppertop 27% of all pairsSmell alikelowCooked together582 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Cheese
- Melts into the sauce to provide the main flavour and rich body.
- Butter
- Helps the cheese melt smoothly and adds richness to the sauce.
- Egg yolk
- Thickens the sauce and gives it a smooth, creamy texture.
- Madeira wine
- Adds acidity and depth of flavour that balances the rich cheese.
The step that matters
Adding the egg mixture to the melted cheese. If the cheese is too hot or the egg is added all at once, the yolk can scramble and the sauce turns grainy. Adding it gradually while stirring keeps it 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.
More welsh rarebit recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Macaroni and Cheese102 recipes
Cheese Making50 recipes
Cheese Fritters34 recipes
Cheese Omelette31 recipes