Why it works: Vinegar and mustard are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 14,067 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Lobster Sauce
Ingredients
Directions
Prepare
Put the coral and spawn of the boiled lobster into a mortar and pound to a smooth paste.
Melt the butter in a saucepan over low heat.
Make the sauce
Stir in the vinegar and mustard until combined.
Add the pounded coral and spawn, salt, and pepper; mix until smooth.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Vinegar + mustardtop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Vinegar + peppertop 14% of all pairsSmell alikemoderateCooked together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Lobster + mustardtop 16% of all pairsSmell alikemoderateCooked together394 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
-
Lobster + buttertop 18% of all pairsSmell alikemoderateCooked together2,609 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Coral and spawn of lobster
- Provides the main lobster flavour and the sauce's colour.
- Butter
- Adds fat for richness and a smooth, silky mouthfeel.
- Vinegar
- Adds acidity that sharpens the flavour and balances the rich butter.
- Prepared mustard
- Adds sharp flavour and helps hold the butter and vinegar together as an emulsion.
The step that matters
Melt the butter over low heat. Gentle heat melts the butter without browning it or letting it separate, so the vinegar and mustard blend into a smooth sauce.
Swap the mustard
How well each one fits the dish's main ingredients (lobster, butter, vinegar, pepper):
- Capsicumfits about as well
- Mustardthe original
- Onionfits less well
- Shallotfits less well
Fit is the average pairing score against lobster, butter, vinegar, pepper. 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.
More lobster sauce recipes
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