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Welsh Rarebit Au Gratin

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Pepper and mustard are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 15,430 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Welsh Rarebit Au Gratin

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

  1. Prepare toast as directed in recipe No. 2.

  2. Place Swiss cheese slices over each piece of toast.

  3. Lay the toast in a baking dish and dust lightly with pepper or spread made mustard on top.

  4. Bake in a hot oven at 400°F (200°C) until the cheese is well melted, about 10 minutes.

  5. For a Golden Buck, add a dropped egg to each slice before baking.

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. Pepper + mustardtop 9% of all pairs
    Smell alikemoderate
    Cooked together15,430 recipes

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

  2. Swiss cheese + mustardtop 12% of all pairs
    Smell alikemoderate
    Cooked together175 recipes

    Shared aroma: linalool (floral, citrus).

  3. Swiss cheese + eggtop 16% of all pairs
    Smell alikemoderate
    Cooked together405 recipes

    Shared aroma: 1-octen-3-ol (mushroom, earthy).

  4. Swiss cheese + peppertop 22% of all pairs
    Smell alikemoderate
    Cooked together448 recipes

    Shared aroma: ethyl 2-methylbutyrate (fruity, apple).

  5. Mustard + eggtop 28% of all pairs
    Smell alikemoderate
    Cooked together9,210 recipes

    Shared aroma: (e)-2-octenal (fatty, green).

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

Swap the mustard

The recipe marks mustard as optional. How well each one fits the dish's main ingredients (swiss cheese, pepper, egg):

  1. Capsicumfits better
  2. Asparagusfits about as well
  3. Spinachfits about as well
  4. Mustardthe original

Fit is the average pairing score against swiss cheese, pepper, egg. Candidates are from the same food group and used in at least 100 recipes.

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