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Sauce

Brown Onion Sauce

A sauce made from onions, butter, brown gravy, and cayenne pepper.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Butter and pepper are a kitchen classic. They rank in the top 21% of all ingredient pairs, and cooks put them together in 85,593 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Brown Onion Sauce

Ingredients

Directions

Prepare the onions

  1. Cut off both ends of the onions and slice them.

  2. Melt the butter in a saucepan and add the sliced onions.

Make the sauce

  1. Stew the onions over medium heat until lightly colored.

  2. Pour in the brown gravy and boil until the onions are tender.

  3. Strain the sauce to remove the onions, season with cayenne, and 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. 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

Butter
Fat that softens the onions and helps them color while adding richness to the sauce.
Brown gravy
Liquid base that cooks the onions until tender and forms the body of the sauce.

The step that matters

Stewing the onions until lightly colored. Gentle heat over medium lets the onions soften and develop a mild, sweet browned flavor. Higher heat scorches the sugars in the onions, which turns the sauce bitter.

“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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