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Smothered Onions

Smothered onions are thinly sliced onions cooked in butter, seasoned with salt and pepper, then baked and served over a broiled steak.

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 ↓

Smothered Onions

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Slice the onions very thin.

  2. Season with salt and pepper.

Cook the onions

  1. In a hot saucepan, melt the butter and add the onions.

  2. Cover and cook on the range for 10 minutes.

  3. Transfer to a 400°F (200°C) oven and bake for 35 minutes.

Serve

  1. Pour the onions over the broiled steak on a hot platter.

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. Pepper + buttertop 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 onions
Provide the main bulk, softening and sweetening as they cook slowly in covered heat.
Melted butter
Adds fat and richness, helping the onions cook gently and carry flavor.
Steak
Serves as the base the smothered onions are poured over, adding savory meat flavor.

The step that matters

Cover and cook on the range for 10 minutes. Covering traps moisture so the onions soften and release their sugars gently. Cooking uncovered too early can dry or scorch them before they become tender and sweet.

Swap the onion

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

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

Fit is the average pairing score against pepper, butter. 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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