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 ↓
Creamed Onions
Ingredients
Directions
Prepare the onions
Peel the onions and soak them in cold water.
Cook the onions in water to cover, adding ½ teaspoon salt for every 2 pints of onions.
Once tender, drain the water and add 1 pint of milk.
Finish the sauce
In a separate bowl, cream together 1 heaping tablespoon of butter and 1 heaping teaspoon of flour.
Stir this mixture into the onions carefully to avoid mashing them.
If needed, adjust the salt and add a dash of pepper.
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.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Form the bulk of the dish and provide the soft, sweet body of the creamed sauce.
- Milk
- Forms the liquid base of the creamy sauce that coats the onions.
- Butter
- Adds fat and richness, carrying flavour into the sauce.
- Flour
- Thickens the milk and butter mixture so the sauce becomes creamy rather than watery.
The step that matters
Stir the flour-butter mixture in gently. Onions are fragile once cooked, and vigorous stirring breaks them down into a mash. Gentle folding keeps the pieces whole while the flour and butter distribute evenly through the milk for a smooth, thickened sauce.
Swap the onion
How well each one fits the dish's main ingredients (milk, butter, flour, pepper):
- Potatofits better
- Capsicumfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against milk, butter, flour, pepper. 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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