Why it works: Mushroom and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 12,525 recipes. Both carry trans-2-decenal, which smells waxy, orange. The science ↓
Brown Gravy Without Meat
Ingredients
Directions
Make the gravy
Combine water and ale in a pot.
Add walnut pickle, mushroom pickle, catsup, anchovies, shredded onions, salt, mace, and whole pepper to the pot.
Melt butter in a separate pan and mix in flour until browned.
Add the browned flour mixture to the pot and boil for 20 minutes.
Finish and serve
Strain the gravy and serve.
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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Mushroom + buttertop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
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Mushroom + oniontop 10% of all pairsSmell alikemoderateCooked together10,626 recipes
Shared aroma: 2,4-decadienal (seaweed).
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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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Mushroom + peppertop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
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Walnut + mushroomtop 12% of all pairsSmell alikestrongCooked together763 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Fat that carries flavor and, with the flour, forms a roux that thickens the gravy.
- Flour
- Thickens the liquid as it cooks, and browning it in butter adds toasty flavor and color.
- Anchovies
- Add savory depth and umami that build the gravy's meaty flavor without meat.
- Onions
- Add sweetness and aromatic flavor as they cook down into the liquid.
- Walnut pickle
- Contributes tangy, savory depth and dark color to the gravy.
- Mushroom pickle
- Adds earthy, savory umami that gives the gravy a meat-like richness.
The step that matters
Browning the flour in butter. Flour cooked in fat must be stirred until it is evenly browned. Too little heat leaves a raw, pasty taste, while scorching gives a bitter flavor that carries into the gravy.
Swap the mace
How well each one fits the dish's main ingredients (walnut, mushroom, onion, pepper, butter, flour):
- Thymefits better
- Parsleyfits better
- Garlicfits better
- Macethe original
Fit is the average pairing score against walnut, mushroom, onion, pepper, 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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