Why it works: Kale and butter work together. They rank in the top 27% of all ingredient pairs, and cooks put them together in 247 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Sea-kale
Ingredients
Directions
Prepare
Wash the sea-kale well and cut away any worm-eaten pieces.
Tie the kale into small bunches.
Cook
Bring the salted water to a boil and add the kale.
Boil quickly until tender, about 15 minutes (add 5 minutes for very tender).
Remove the kale, drain, and untie the bunches.
Serve
Serve with plain melted butter or white sauce.
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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Kale + buttertop 27% of all pairsSmell alikemoderateCooked together247 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Sea-kale
- Provides the main vegetable body and tender, mild flavour that the butter or sauce complements.
- Butter
- Adds richness and a smooth fat coating that balances the mild, slightly bitter kale.
The step that matters
Boil quickly until tender. Boiling in a large volume of rapidly boiling salted water cooks the kale evenly and quickly. Overcooking breaks down cell walls, leaving it limp and waterlogged, so timing against tenderness matters.
“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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