Why it works: Lemon and watercress match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 579 recipes. Both carry coumarin, which smells sweet, hay. The science ↓
Shad Roe Salad
Ingredients
Directions
Poach the roe
Soak the roe in cold water for about 5 minutes.
Add the roe to boiling water with salt, onion, bay leaf, mixed spice, and lemon juice.
Simmer for about 15 minutes, adding cold water gradually to avoid breaking the roe.
Add a piece of ice to the water and let it chill thoroughly.
Cut the chilled roe into dice.
Prepare and serve
Prepare the tomatoes by cutting off the stem end and scooping out the seeds and pulp.
Chill the tomatoes until ready to serve.
Fill the tomatoes with the diced roe and pour over French dressing.
Serve on a bed of watercress.
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.
-
Lemon + watercresstop 3% of all pairsSmell alikestrongCooked together579 recipes
Shared aroma: coumarin (sweet, hay).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + watercresstop 9% of all pairsSmell alikestrongCooked together533 recipes
Shared aroma: coumarin (sweet, hay).
-
Lemon + tomatotop 11% of all pairsSmell alikemoderateCooked together4,592 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Tomato + watercresstop 12% of all pairsSmell alikemoderateCooked together158 recipes
Shared aroma: coumarin (sweet, hay).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Shad roe (in the method)
- Forms the main body of the salad, giving it a firm, flaky texture once cooked and diced.
- Lemon juice
- Adds acidity that brightens the flavour of the roe and balances the dressing.
- Medium-sized tomatoes
- Act as edible cups that hold the diced roe and add moisture and freshness.
- French dressing
- Adds fat and acidity that moisten the roe and bring the salad together.
The step that matters
Simmering the roe gently. Adding cold water gradually keeps the simmer gentle, because a hard boil toughens and breaks the delicate roe membrane and makes the eggs firm and crumbly.
Swap the onion
How well each one fits the dish's main ingredients (lemon, tomato, watercress):
- Kalefits better
- Lettucefits better
- Spinachfits better
- Onionthe original
Fit is the average pairing score against lemon, tomato, watercress. 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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