Skip to main content
Main

To Boil Onions

A dish of onions boiled in water, then stewed with milk and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
Jump to recipe ↓

Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

To Boil Onions

Ingredients

Directions

Boil the onions

  1. Boil the onions in water for 30 minutes, then drain the water.

Stew and serve

  1. In a pot, combine the onions, milk, and butter.

  2. Stew until the onions are tender.

  3. Serve warm.

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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

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

    Shared aroma: decanal (soap, orange peel).

  3. Onion + milktop 20% of all pairs
    Smell alikemoderate
    Cooked together13,418 recipes

    Shared aroma: hexanal (green, grassy).

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

What each ingredient does

Onions
Form the main body of the dish and become soft and mild-sweet as they cook.
Milk
Provides moisture and a creamy, smooth liquid that gently stews the onions.
Butter
Adds fat for richness and a smooth, silky mouthfeel.

The step that matters

Stew until the onions are tender. Milk can scorch or stick to the bottom of the pot if the heat is too high. Keep the heat low and stir occasionally so the onions soften evenly without the milk burning.

Swap the onion

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

  1. Potatofits better
  2. Asparagusfits about as well
  3. Leekfits about as well
  4. Onionthe original

Fit is the average pairing score against milk, 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.

You might also like

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