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Scalloped Onions

Onions baked with butter, bread crumbs, and milk or cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Scalloped Onions

Why it works: Butter and bread are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Scalloped Onions

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Boil small onions until tender.

  2. Drain the onions and place them in a buttered baking dish in alternate layers with bread crumbs.

Assemble and bake

  1. Season with salt, pepper, and butter.

  2. Partly cover with milk or cream.

  3. Bake at 350°F (175°C) for 30 minutes.

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.

Photo for illustrative purposes only · Contact us to use it

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 + breadtop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

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

  2. Butter + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Bread + milktop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

  4. Onion + peppertop 11% of all pairs
    Smell alikemoderate
    Cooked together68,474 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

    Shared aroma: decanal (soap, orange peel).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Small onions
Provide the main body of the dish, becoming soft and sweet as they cook.
Butter
Adds richness and flavor and helps the top brown in the oven.
Bread crumbs
Layered with the onions to soak up liquid and give the dish a soft, set texture.
Milk or cream
Adds moisture that bakes into a creamy, custard-like sauce around the onions.

The step that matters

Partly cover with milk or cream. Too little liquid leaves the crumbs dry, while covering the dish fully can stop the top from browning. Partial covering keeps the layers moist and lets the surface brown.

Swap the onion

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

  1. Capsicumfits better
  2. Potatofits better
  3. Tomatofits better
  4. Onionthe original

Fit is the average pairing score against butter, bread, pepper, milk. 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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