Why it works: Butter and flour 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 ↓
A Nice Way to Serve Cold Beef
Ingredients
Directions
Assemble
Slice the cold roast beef.
Cover the beef with gravy.
Add ⅓ cup of catsup or wine, or thinly sliced lemon.
If you don't have gravy, combine hot water, butter, and browned flour in a covered stew pan.
Simmer
Simmer gently for 30 minutes.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Wine + lemontop 13% of all pairsSmell alikelowCooked together6,157 recipes
Shared aroma: decanal (soap, orange peel).
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Wine + buttertop 13% of all pairsSmell alikemoderateCooked together8,645 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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Lemon + buttertop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Beef + buttertop 16% of all pairsSmell alikemoderateCooked together10,847 recipes
Shared aroma: 2-furfurylthiol (coffee, roasted).
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
- Gravy
- Adds moisture and savory flavor that keeps the cold beef from drying out.
- Catsup or wine
- Adds acidity and sweetness that brighten the savory gravy.
- Lemon
- Adds sharp acidity that cuts the richness of the beef and gravy.
- Butter
- Adds fat and richness to the gravy, giving it a smoother mouthfeel.
- Browned flour
- Thickens the gravy and adds a toasted, nutty flavor.
The step that matters
Simmer gently for 30 minutes. A gentle simmer lets the beef warm through and soften slowly. A hard boil tightens the meat fibers and makes it tough and dry, and it can break the gravy's texture.
Swap the lemon
How well each one fits the dish's main ingredients (beef, wine, butter, flour):
- Raisinfits better
- Grapefits about as well
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against beef, wine, butter, flour. 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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