Why it works: Chive and shallot match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 450 recipes. Both carry 1-octen-3-ol, which smells mushroom, earthy. The science ↓
Mustard Sauce Made As Follows is Served with Beef
Ingredients
Directions
Make the broth base
Boil 1 pint of beef broth with chopped chives, shallot, or green onions for 1 hour.
Add dry mustard, vinegar, salt, and pepper; stir until combined and keep hot.
Make the sauce
In a separate pan, melt butter and mix with flour over heat.
Pour in hot water, season with salt and pepper, and mix in moistened mustard.
Stir until the sauce boils and is ready to serve.
Add chopped capers or pickles if desired.
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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Chive + shallottop 1% of all pairsSmell alikestrongCooked together450 recipes
Shared aroma: 1-octen-3-ol (mushroom, earthy).
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Shallot + mustardtop 1% of all pairsSmell alikestrongCooked together859 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Chive + mustardtop 1% of all pairsSmell alikestrongCooked together587 recipes
Shared aroma: guaiacol (smoky, sweet).
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Shallot + flourtop 6% of all pairsSmell alikestrongCooked together2,081 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Melted with flour to form a roux that thickens the sauce and adds richness.
- Flour
- Combined with melted butter to form a roux that thickens the liquid into a smooth sauce.
- Beef broth
- Forms the savory liquid base of the sauce, flavoured by simmering with aromatics.
- Dry mustard
- Adds sharp pungent flavour that mellows with heat and is balanced by the vinegar.
- Vinegar
- Adds acidity that sharpens the flavour and balances the richness of the butter.
The step that matters
Stir the roux before adding the hot water. Cooking butter and flour together briefly removes raw flour taste and lets the starch thicken evenly when liquid is added. Adding the liquid too early or without stirring can leave lumps.
Swap the mustard
How well each one fits the dish's main ingredients (beef, chive, shallot, vinegar, pepper, butter, flour):
- Leekfits about as well
- Mustardthe original
- Welsh onionfits about as well
- Kalefits about as well
Fit is the average pairing score against beef, chive, shallot, vinegar, 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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