Skip to main content
Main

To Cook Onions

Onions cooked in salted water, baked with gravy, butter, and cream.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
Jump to recipe ↓

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 ↓

To Cook 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. Peel and rinse the onions in cold water.

  2. Place them in boiling salted water and simmer for 20 minutes.

  3. Drain the onions and transfer them to a baking dish.

Bake and finish

  1. Sprinkle with salt and pepper, then cover with boiling water.

  2. Bake at 400°F (200°C) for 1 hour.

  3. Remove from the oven and add thickened gravy, butter, and cream.

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

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

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

    Shared aroma: decanal (soap, orange peel).

  4. Onion + creamtop 18% of all pairs
    Smell alikelow
    Cooked together10,827 recipes

    Shared aroma: 2-nonanone (fruity, floral).

  5. Pepper + buttertop 21% of all pairs
    Smell alikemoderate
    Cooked together85,593 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

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
Provide the main body and sweetness as they soften and caramelize slowly in the oven.
Gravy
Adds savory flavor and moisture that coats the onions as the dish finishes.
Butter
Adds richness and fat, carrying flavor and giving a smooth, glossy finish.
Cream
Adds richness and body, softening acidity and rounding out the sauce.

The step that matters

Simmering the onions before baking. Simmering partly softens the onions so they cook through evenly in the oven. Skipping or shortening this step can leave the centers firm while the outside overcooks.

Swap the onion

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

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

Fit is the average pairing score against pepper, 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.

You might also like

Tomato SoupTomato Soup526 recipesBrown BreadBrown Bread461 recipesMutton BrothMutton Broth292 recipesYorkshire PuddingYorkshire Pudding264 recipes