Why it works: Capers and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 405 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Hot Sauce, for Broils, Etc
Ingredients
Directions
Make the sauce
Melt the butter in a saucepan.
Stir in the flour and mix smoothly with a wooden spoon until lightly browned.
Gradually add the stock while stirring continuously.
Add the capers, shallots, mustard, essence of anchovy, walnut ketchup, port or claret, and cayenne.
Boil gently for 6 to 7 minutes.
Serve
Serve hot.
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.
-
Capers + shallottop 1% of all pairsSmell alikestrongCooked together405 recipes
Shared aroma: coumarin (sweet, hay).
-
Capers + mustardtop 1% of all pairsSmell alikestrongCooked together624 recipes
Shared aroma: coumarin (sweet, hay).
-
Shallot + mustardtop 1% of all pairsSmell alikestrongCooked together859 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Anchovy + ketchuptop 2% of all pairsSmell alikestrongCooked together479 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Shallot + walnuttop 6% of all pairsSmell alikestrongCooked together440 recipes
Shared aroma: 2,4-decadienal (seaweed).
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 carries flavour, giving it a rich, smooth body.
- Flour
- Thickens the sauce with the butter as a roux, giving it body and a light browned colour.
- Stock
- Forms the liquid base that the flour thickens into a pourable sauce.
- Walnut ketchup
- Adds deep, savoury, slightly tangy flavour to the sauce.
- Port or claret
- Adds wine-based acidity and depth that rounds out the sauce.
The step that matters
Browning the flour in the butter. Cooking the flour in melted butter builds a roux that thickens the sauce. Stirring constantly keeps it smooth and prevents lumps or scorching, and the colour develops as the starch toasts.
Swap the walnut
How well each one fits the dish's main ingredients (butter, flour, capers, shallot, mustard, anchovy, ketchup):
- Chestnutfits better
- Lentilsfits about as well
- Beansfits about as well
- Walnutthe original
Fit is the average pairing score against butter, flour, capers, shallot, mustard, anchovy, ketchup. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Mixed Mustard9 recipes
Wine Sauce (for stewed fruit)186 recipes
Caper Sauce180 recipes
Brown Sauce141 recipes