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Onions in Ceeam

Onions cooked in salted water, then finished with butter, salt, and cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Onions in Ceeam

Ingredients

Directions

  1. Remove the skins from the onions.

  2. Cook the onions in boiling salted water for one hour, changing the water after the first 30 minutes.

  3. Drain the onions and add the butter, salt, and cream.

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

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

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

    Shared aroma: decanal (soap, orange peel).

  3. Onion + creamtop 18% of all pairs
    Smell alikelow
    Cooked together10,827 recipes

    Shared aroma: 2-nonanone (fruity, floral).

Onion and cream barely smell alike, yet cooks put them together in 10,827 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

Onions
Become tender and mellow in flavor as they cook, forming the body of the dish.
Cream
Adds richness and moisture, coating the onions and softening their sharpness.
Butter
Adds fat for richness and a smooth, rounded mouthfeel.

The step that matters

Changing the water after 30 minutes. Onions release sulfurous, bitter compounds while cooking. Replacing the water partway through removes some of these, leaving a milder, sweeter flavor in the finished dish.

Swap the onion

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

  1. Potatofits about as well
  2. Onionthe original
  3. Leekfits about as well
  4. Chivefits less well

Fit is the average pairing score against butter, cream. 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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