Name: Oyster Cocktail
Ingredients: 60 small oysters; 3 teaspoons grated horseradish; 1 teaspoon Tabasco sauce; 2 tablespoons vinegar; 5 tablespoons Worcestershire sauce; 3 tablespoons tomato ketchup; 1¼ teaspoons coarse sea salt

Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓

Oyster Cocktail

Ingredients

Directions

Prepare

Clean and chill the oysters.

Make and serve

Mix the oysters with horseradish, Tabasco sauce, vinegar, Worcestershire sauce, tomato ketchup, and coarse sea salt.
Serve in sherry glasses, grapefruit or lemon shells, or in tomato cups.

Recipe from a historical cookbook (Internet Archive).

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.

Sauce + ketchuptop 1% of all pairs

Smell alikestrong

Cooked together1,099 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Horseradish + ketchuptop 10% of all pairs

Smell alikemoderate

Cooked together223 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Horseradish + vinegartop 12% of all pairs

Smell alikemoderate

Cooked together2,609 recipes

Shared aroma: isobutyraldehyde (malty, green).
Horseradish + saucetop 12% of all pairs

Smell alikemoderate

Cooked together775 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Oyster + horseradishtop 13% of all pairs

Smell alikemoderate

Cooked together282 recipes

Shared aroma: 2-methylbutyraldehyde (malty, chocolate).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Oysters: Provide the main ingredient and the briny, delicate flavour at the centre of the cocktail.
Horseradish: Adds sharp, pungent heat that cuts through the richness of the oysters.
Tomato ketchup: Adds sweetness and body to the sauce, balancing the sharpness of the vinegar.
Vinegar: Adds acidity that brightens the sauce and sharpens the flavour of the oysters.
Worcestershire sauce: Adds savoury, fermented depth to the sauce.

Swap the tomato

How well each one fits the dish's main ingredients (oyster, horseradish, sauce, vinegar, ketchup):

Mustardfits better
Shallotfits better
Cucumberfits better
Tomatothe original

Fit is the average pairing score against oyster, horseradish, sauce, vinegar, 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.