Why it works: Cider and vinegar are a kitchen classic. They rank in the top 6% of all ingredient pairs, and cooks put them together in 3,431 recipes. Both carry 4-ethyl-2-methoxyphenol, which smells smoky, clove. The science ↓
Sharp Brown Sauce
Ingredients
Directions
Put in a saucepan one tablespoonful of chopped onion, three tablespoonfuls of good cider vinegar, six tablespoonfuls of water, three tablespoons of tomato ketchup, a little pepper and salt, half a cup of melted butter.
Stir in a tablespoonful of sifted flour.
Put all together and boil until it thickens.
Nutrition, whole recipe (rough)
Counts 4 of 6 ingredients. The other 2 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Butter | 1 tbsp (14g) | 102 |
| Onion | 1 medium (110g) | 44 |
| Vinegar | 1 tbsp (15ml) distilled | 3 |
| Cider | not in our table | 0 |
| Water | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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.
-
Cider + vinegartop 6% of all pairsSmell alikemoderateCooked together3,431 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Onion + buttertop 15% of all pairsSmell alikemoderateCooked together42,912 recipes
Shared aroma: decanal (soap, orange peel).
-
Onion + flourtop 17% of all pairsSmell alikemoderateCooked together32,460 recipes
Shared aroma: isobutyraldehyde (malty, green).
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
- Flour
- Thickens the sauce as its starch swells and sets when heated in the liquid.
- Melted butter
- Adds fat for smooth body, rich flavour and a glossy mouthfeel.
- Cider vinegar
- Adds sharp acidity that brightens the sauce and balances the butter.
- Chopped onion
- Adds savoury aroma and background flavour to the sauce.
The step that matters
Boil until it thickens. Flour only thickens fully when the mixture reaches a boil, and the starch needs to cook through to lose its raw, pasty taste. Stopping early leaves the sauce thin and floury.
Swap the onion
How well each one fits the dish's main ingredients (cider, vinegar, butter, flour):
- Shallotfits better
- Mustardfits better
- Cucumberfits better
- Onionthe original
Fit is the average pairing score against cider, vinegar, 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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