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 ↓
Shad Roes
Ingredients
Directions
Prepare the roes
Clean the fish and wash the roes.
Place the roes in a saucepan with the onion and parsley, cover with boiling water, and add salt.
Cook for 15 minutes, then let them cool in the liquid.
Remove the roes, wipe them dry, roll in beaten egg and cracker dust.
Fry and make the sauce
Fry in butter until light brown.
Transfer to a hot dish, strain the cooking liquid into the frying pan.
Stir in Worcestershire sauce and ketchup, and heat to a boil.
Thicken with a brown roux, add sherry, and pour over the roes.
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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Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Onion + parsleytop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Roe + saucetop 10% of all pairsSmell alikemoderateCooked together142 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Roe + ketchuptop 12% of all pairsSmell alikemoderateCooked together21 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Butter + sherrytop 14% of all pairsSmell alikemoderateCooked together3,505 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Shad roes
- The main protein, which becomes tender and delicate when gently poached.
- Beaten egg
- Binds the cracker dust to the roes so the coating holds during frying.
- Cracker dust
- Forms a crisp, golden coating that browns in the butter.
- Butter
- Fries the coated roes to light brown and adds rich flavor.
- Brown roux (in the method)
- Thickens the pan liquid into a smooth sauce.
- Sherry
- Adds acidity and aroma to the sauce.
The step that matters
Cooking the roes in the liquid. Roes are delicate and overcooking makes them firm and dry. Letting them cool in the cooking liquid keeps them moist and tender before coating and frying.
Swap the onion
How well each one fits the dish's main ingredients (roe, parsley, egg, butter, sauce, ketchup, sherry):
- Shallotfits better
- Chivefits better
- Capsicumfits better
- Onionthe original
Fit is the average pairing score against roe, parsley, egg, butter, sauce, ketchup, sherry. 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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