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Glazed Onions

Glazed onions are onions caramelized with butter, salt, sugar, and broth, then baked until glossy.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Sugar and sauce match in chemistry and in kitchens. They rank in the top 13% of all ingredient pairs, and cooks put them together in 5,147 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Glazed Onions

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Peel the onions, being careful not to cut the tops or roots too much.

  2. Place the onions in a flat saucepan with butter, season with salt, and sprinkle with powdered sugar.

  3. Moisten with broth or water to cover the onions.

Glaze and finish

  1. Cook on a brisk fire until the moisture is half reduced.

  2. Transfer to a 350°F (175°C) oven, shaking occasionally.

  3. When the moisture reduces to a glaze, roll the onions in it to coat evenly.

  4. If serving with sauce, add Espagnole sauce and gravy to the glaze, boil slowly, skim off grease, and pour over the onions.

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. Sugar + saucetop 13% of all pairs
    Smell alikestrong
    Cooked together5,147 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  2. Butter + saucetop 15% of all pairs
    Smell alikelow
    Cooked together15,338 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

    Shared aroma: decanal (soap, orange peel).

  4. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Onion + saucetop 19% of all pairs
    Smell alikelow
    Cooked together10,474 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Butter and sauce barely smell alike, yet cooks put them together in 15,338 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

Small white onions
Form the main body of the dish, cooking down to tender pieces in the glaze.
Butter
Adds richness and helps the onions brown gently in the pan.
Powdered sugar
Caramelizes in the reducing liquid, giving the onions a glossy, sweet glaze.

The step that matters

Reducing the moisture to a glaze. If the liquid reduces too far, the sugars scorch and the onions stick and burn; if it is not reduced enough, the onions stay watery and the glaze never coats them. Watch the pan closely as the liquid thickens.

Swap the onion

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

  1. Mustardfits better
  2. Capsicumfits better
  3. Shallotfits better
  4. Onionthe original

Fit is the average pairing score against butter, sugar, sauce. 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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