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Onion Sauce

A creamy sauce made from onions, butter, salt, cream, and sage or summer savory.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 ↓

Onion Sauce

Ingredients

Directions

  1. Boil the sliced onions in the butter until tender.

  2. Add the coarse sea salt and cream.

  3. Season with sage or summer savory to taste.

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 + sagetop 12% of all pairs
    Smell alikemoderate
    Cooked together3,628 recipes

    Shared aroma: coumarin (sweet, hay).

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

    Shared aroma: decanal (soap, orange peel).

  4. Butter + sagetop 17% of all pairs
    Smell alikemoderate
    Cooked together3,312 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  5. 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
Soften and turn sweet as they cook in butter, forming the sauce's base flavor.
Butter
Carries the onions as they cook and adds richness and a rounded, savory flavor.
Cream
Adds richness and body, giving the sauce a smooth, velvety texture.

Swap the sage

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

  1. Garlicfits better
  2. Nutmegfits better
  3. Capersfits better
  4. Sagethe original

Fit is the average pairing score against onion, 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.

More onion sauce recipes

Brown 49White 27Sage 9Young 8Spanish 5Fried 3 See all 175 →

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