Why it works: Mustard and capers match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 624 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Grill Sauce
Ingredients
Directions
In a bowl, rub together the butter and flour until smooth.
Add the gravy, mushroom or walnut ketchup, lemon juice, made mustard, minced capers, black pepper, grated lemon rind, essence of anchovies, and eschalot wine or minced eschalot, then mix well until all ingredients are combined.
Heat the sauce gently before serving.
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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Mustard + caperstop 1% of all pairsSmell alikestrongCooked together624 recipes
Shared aroma: coumarin (sweet, hay).
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Lemon + peppertop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Lemon + caperstop 5% of all pairsSmell alikestrongCooked together1,222 recipes
Shared aroma: coumarin (sweet, hay).
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Flour + caperstop 6% of all pairsSmell alikestrongCooked together1,024 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + mushroomtop 7% of all pairsSmell alikemoderateCooked together12,525 recipes
Shared aroma: trans-2-decenal (waxy, orange).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Enriches the sauce and, with the flour, helps thicken it smoothly.
- Flour
- Thickens the sauce by binding with the butter and liquid.
- Gravy
- Forms the savoury liquid base of the sauce.
- Mushroom or walnut ketchup
- Adds deep, savoury umami flavour to the sauce.
- Lemon juice
- Adds acidity that brightens the rich sauce.
The step that matters
Rub the butter and flour until smooth. Working the flour into the butter until smooth creates a paste that blends evenly into the liquid. If flour is added in lumps, it can clump and leave a grainy or floury texture in the finished sauce.
Swap the lemon
How well each one fits the dish's main ingredients (butter, flour, mushroom, mustard, capers, pepper, wine):
- Lemonthe original
- Avocadofits about as well
- Limefits less well
- Cherryfits less well
Fit is the average pairing score against butter, flour, mushroom, mustard, capers, pepper, wine. 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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