Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Mixed Hash
Ingredients
Directions
Prepare
Heat the butter in a pan over medium heat.
Add the browned flour and stock, stirring until it begins to cook.
Cook the hash
Add the diced potatoes and cook until tender.
Stir in the chopped meat and mix well.
Serve
Serve the hash on toast.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Turkey + buttertop 13% of all pairsSmell alikemoderateCooked together1,592 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Flour + potatotop 15% of all pairsSmell alikemoderateCooked together5,355 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Turkey + potatotop 21% of all pairsSmell alikemoderateCooked together29 recipes
Shared aroma: (z)-4-decenal (green, must).
Flour and butter 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
- Hashed turkey or chicken
- Provides the main protein and body of the hash.
- Browned flour
- Thickens the stock into a smooth sauce and adds a toasty, nutty flavour.
- Stock
- Supplies the liquid that cooks the flour into a sauce and moistens the hash.
- Potatoes
- Add starch and bulk, becoming tender and soaking up the savoury sauce.
- Butter
- Adds fat for richness and helps the pan-cooked ingredients brown lightly.
The step that matters
Adding the browned flour and stock. Stirring constantly while the liquid is added to the flour prevents lumps, because flour clumps when it meets liquid before it is evenly dispersed. Cooking it until it begins to cook lets the starch thicken the sauce.
Swap the potato
How well each one fits the dish's main ingredients (turkey, flour, butter):
- Shallotfits better
- Leekfits better
- Chivefits better
- Potatothe original
Fit is the average pairing score against turkey, flour, 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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