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Welsh Rare-bit

A Welsh cheese toast made with dripping, mustard, and milk.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Cheese and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 2,130 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Welsh Rare-bit

Ingredients

Directions

Prepare

  1. Toast the bread and spread part of the dripping on it. Keep the toast warm in the oven.

  2. Cut the cheese into pieces and place it in a small saucepan with the milk, mustard, salt, pepper, and the remaining dripping.

Make the topping and serve

  1. Stir the mixture over low heat until melted.

  2. Spread the melted cheese mixture on the toast and serve hot.

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 + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together2,130 recipes

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

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

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

  3. Cheese + milktop 10% of all pairs
    Smell alikemoderate
    Cooked together4,426 recipes

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

  4. Milk + breadtop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

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

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

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cheese
Melts into a smooth sauce that forms the topping.
Dripping
Adds fat and richness, helping the cheese melt smoothly and coat the toast.
Milk
Loosens the melted cheese so it spreads evenly instead of clumping.
Mustard
Adds sharp flavour that cuts through the richness of the cheese.
Bread
Provides the crisp, toasted base that holds the cheese topping.

The step that matters

Stir the mixture over low heat until melted. High heat can make cheese turn grainy or oily as its proteins tighten and fat separates. Gentle heat lets it melt into a smooth, pourable sauce.

Swap the mustard

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

  1. Capsicumfits better
  2. Tomatofits better
  3. Potatofits better
  4. Mustardthe original

Fit is the average pairing score against cheese, milk, bread, pepper. 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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