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Welsh Rarebit

A cheese sauce made with butter, cheese, mustard, cayenne pepper, and cream served on buttered toast.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Butter and cream 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 sauce

  1. Melt the butter in a stew pan.

  2. Add the cheese and seasoning, stirring until the cheese melts.

  3. Gradually add the cream while stirring until smooth and creamy.

Serve

  1. Serve the mixture on buttered toast cut into ½ inch strips placed closely together.

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. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

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

  2. Butter + cheesetop 8% of all pairs
    Smell alikemoderate
    Cooked together7,962 recipes

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

  3. Mustard + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  4. Cheese + mustardtop 11% of all pairs
    Smell alikemoderate
    Cooked together1,805 recipes

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

  5. Cheese + creamtop 15% of all pairs
    Smell alikemoderate
    Cooked 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 to give it its rich, creamy body and savory flavor.
Butter
Fat that starts the sauce and carries flavor while the cheese melts.
Cream
Adds moisture so the melted cheese becomes a smooth, pourable sauce.
Mustard
Adds sharp, tangy flavor that balances the richness of the cheese.

The step that matters

Adding the cream gradually while stirring. Cheese proteins can tighten and turn grainy or stringy when overheated or when liquid is added too fast. Adding cream slowly while stirring keeps the emulsion smooth and creamy.

Swap the mustard

How well each one fits the dish's main ingredients (butter, cheese, pepper, cream):

  1. Potatofits better
  2. Capsicumfits about as well
  3. Onionfits about as well
  4. Mustardthe original

Fit is the average pairing score against butter, cheese, pepper, cream. 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.

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