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Boiled Onions

A dish of onions boiled in milk and water, then sautéed with butter and cream, seasoned with pepper and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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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 ↓

Boiled Onions

Oven, in the book's wordsA moderate oven

Ingredients

Directions

Prepare

  1. Remove the outer skin from the onions.

Boil and finish

  1. Boil the onions in a large quantity of milk and water until tender.

  2. Drain the onions and place them in a saucepan.

  3. Add butter and cream to the saucepan.

  4. Season with pepper and salt, then serve.

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

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

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

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

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

    Shared aroma: decanal (soap, orange peel).

  5. Milk + creamtop 18% of all pairs
    Smell alikemoderate
    Cooked together29,399 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

Onions
Form the main body of the dish, becoming tender and sweet as they cook.
Milk
Cooks the onions gently and adds mild sweetness and body to the liquid.
Butter
Adds richness and fat that gives the onions a smooth, rounded flavor.
Cream
Adds richness and a silky texture to the finished onions.

The step that matters

Boil the onions until tender. Boiling must go on until the onions are fully tender throughout; undercooked centers stay firm and sharp, while the dense layers need time for starches and sugars to soften evenly.

Swap the onion

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

  1. Potatofits better
  2. Capsicumfits better
  3. Onionthe original
  4. Asparagusfits about as well

Fit is the average pairing score against milk, butter, cream, 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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