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Tripe and Onions

Tripe and Onions is a simple stew of tripe and onions simmered in milk and butter.

From an old cookbook · modernised transcription
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Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Tripe and Onions

Ingredients

Directions

Prepare the onions

  1. Boil the onions in three changes of water until tender, then drain.

Make the dish

  1. Cover the onions with milk and add butter, salt, and pepper.

  2. Cut the tripe into squares and add it to the onions.

  3. Boil for a few minutes, then thicken with flour.

  4. 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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

  3. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Tripe
Forms the main body of the dish, giving it a chewy, substantial texture.
Onions
Provide sweetness and bulk, softening fully during the initial boiling.
Milk
Forms the creamy liquid that surrounds the tripe and onions.
Flour
Thickens the milk mixture into a richer, coating sauce.
Butter
Adds richness and fat, contributing to flavor and a smooth mouthfeel.

The step that matters

Thicken with flour after boiling. Flour must be stirred into the simmering liquid evenly; added unevenly or to a cold liquid it forms lumps, and the sauce will not thicken smoothly.

Swap the onion

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

  1. Potatofits better
  2. Capsicumfits better
  3. Chivefits better
  4. Onionthe original

Fit is the average pairing score against milk, butter, pepper, flour. 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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