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Onions Boiled

A simple boiled onion dish seasoned with salt, pepper, and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Onions Boiled

Ingredients

Directions

Prepare

  1. Peel the onions.

  2. Cut off the ends of the onions.

  3. Place the onions in a stew-pan with cold water.

  4. Scald the onions for 2 minutes.

  5. Drain the water.

Boil

  1. Add cold salted water.

  2. Boil slowly until tender, about 30 to 40 minutes depending on size.

  3. Drain completely.

Finish and serve

  1. Pour melted butter over the onions.

  2. Sprinkle with pepper and salt before serving 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. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

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

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

    Shared aroma: decanal (soap, orange peel).

  3. Butter + peppertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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

What each ingredient does

White silver-skin onions
Provide the main body and sweet, mild flavour of the dish.
Butter
Adds richness and a silky mouthfeel when melted over the cooked onions.
Coarse sea salt
Seasons the cooking water so the onions taste seasoned throughout.

The step that matters

Boil slowly until tender. A gentle simmer cooks the onions evenly and keeps them intact, while a hard boil can break them apart and leave the outer layers mushy before the centre softens.

Swap the onion

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

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

Fit is the average pairing score against butter, 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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