Why it works: Flour and bread are a kitchen classic. They rank in the top 25% of all ingredient pairs, and cooks put them together in 10,383 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
To Boil Marrow Bones
Ingredients
Directions
Prepare the bones
Have the butcher saw the large ends of the bones so they can stand upright.
Place the bones upright in the boiling vessel if possible.
Make a paste with flour and water and cover the ends where the marrow is visible.
Tie a cloth tightly over the paste.
Serve
Remove the paste before serving and place the bones upright in a napkin.
Serve with slices of dry toasted bread.
Storage
For storage, partially boil the bones for 1 hour and then keep them in a cool place.
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.
-
Flour + breadtop 25% of all pairsSmell alikelowCooked together10,383 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and bread barely smell alike, yet cooks put them together in 10,383 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
- Large marrow bones
- Provide the rich marrow fat, which softens with heat and becomes spreadable when eaten.
- Flour
- Mixed with water to form a paste that seals the bone ends and holds the marrow in.
- Dry toasted bread
- Offers a crisp, dry base that contrasts with the soft, rich marrow.
The step that matters
Sealing the bone ends with paste. The flour and water paste must fully cover the exposed marrow and the cloth must be tied tightly. A gap lets the soft marrow leak out into the water as it boils, so the bones lose their richness.
“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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Brown Bread461 recipes
White Bread80 recipes
Bread Omelette60 recipes
Oatmeal Bread51 recipes