Why it works: Cream and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Welsh Rarebit
Ingredients
Directions
Make the rarebit
Melt the butter in a chafing dish.
Add the cheese and seasoning.
Slowly stir in the ale or cream.
Continue stirring until the mixture becomes stringy.
Serve
Serve immediately on thin slices of 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.
-
Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cheese + mustardtop 11% of all pairsSmell alikemoderateCooked together1,805 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cheese + creamtop 15% of all pairsSmell alikemoderateCooked together2,655 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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 and provides the main body, flavour and stringy texture.
- Ale or cream
- Adds liquid that loosens the melted cheese into a smooth, spreadable mixture.
- Butter
- Adds fat that helps the cheese melt smoothly and adds richness.
- Mustard
- Adds sharpness that balances the richness of the cheese.
The step that matters
Slowly stir in the ale or cream. Cheese proteins can tighten and clump when heated too fast or mixed with liquid too quickly. Adding the liquid gradually while stirring lets the cheese emulsify into a smooth sauce.
Swap the mustard
How well each one fits the dish's main ingredients (cheese, cream, pepper, butter):
- Potatofits better
- Capsicumfits about as well
- Onionfits about as well
- Mustardthe original
Fit is the average pairing score against cheese, cream, pepper, butter. Candidates are from the same food group and used in at least 100 recipes.
“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
Macaroni and Cheese102 recipes
Cheese Making50 recipes
Cheese Fritters34 recipes
Cheese Omelette31 recipesThe 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.