Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Cook a Shad Roe
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Poach the roe
Drop the shad roe into boiling water and cook gently for 20 minutes.
Remove from heat and drain the roe.
Season and bake
Butter a tin plate and place the drained roe on it.
Dredge the roe with coarse sea salt and black pepper.
Spread soft butter over the roe.
Dredge the roe thickly with flour.
Cook in a 350°F (175°C) oven for 30 minutes, basting frequently with a mixture of salt, pepper, flour, butter, and water.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Roe + buttertop 14% of all pairsSmell alikelowCooked together442 recipes
Shared aroma: 2,6-nonadienal (cucumber, green).
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Roe + flourtop 19% of all pairsSmell alikemoderateCooked together177 recipes
Shared aroma: eugenol (clove, spicy).
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Pepper + flourtop 19% of all pairsSmell alikemoderateCooked together50,459 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Shad roe
- Forms the main body of the dish, becoming firm and tender when gently poached and then baked.
- Soft butter
- Adds richness and moisture, and helps the surface brown in the oven.
- Flour
- Forms a dry coating on the roe that helps build a crust and absorbs basting liquid.
The step that matters
Cooking the roe gently in boiling water. Boiling the roe hard can toughen and break its delicate membrane and tissue. A gentle simmer keeps it tender and intact, so it holds together through the baking that follows.
“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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