Why it works: Flour and pepper are a kitchen classic. They rank in the top 19% of all ingredient pairs, and cooks put them together in 50,459 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Boiled Marrow Bones
Ingredients
Directions
Prepare the bones
Mix flour with cold water to form a stiff paste.
Cover the ends of the bones with the paste to prevent the marrow from melting out.
Tie each bone in a small, floured cloth.
Boil
Boil a pan of water and stand the bones upright in it, ensuring they are covered.
Boil for 2 hours, then remove the cloths and paste.
Serve
Serve each bone upright on a piece of hot dry toast.
Sprinkle the marrow with pepper and coarse sea salt before serving.
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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Flour + peppertop 19% of all pairsSmell alikemoderateCooked together50,459 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
- Marrow bones
- Provide the rich marrow that becomes the dish's central filling.
- Flour
- Forms a stiff paste that seals the bone ends and keeps marrow from escaping.
The step that matters
Sealing the bone ends with paste. If the paste is too loose or has gaps, the marrow can melt out during the long boil, leaving the bones dry and the dish less rich.
“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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