Why it works: Beef and pepper are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 18,971 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Portable Soup, or Glaze
Ingredients
Directions
Prepare the broth
Ask the butcher to break the bones of the beef.
Place the bones in a large soup pot and cover with cold water.
Heat gradually until it nearly boils.
Skim off any scum that rises.
Add a little cold water to help remove scum.
Bring to a boil again.
Skim once more.
Once the broth is clear, boil for 8 to 10 hours.
Strain the broth through a fine sieve into a brown stone pan.
Let it cool quickly.
Remove the meat.
Let it drain in a sieve.
The next day, remove any fat from the top of the broth.
Pour the broth through a fine sieve into a clean stew-pan, avoiding the sediment at the bottom.
Reduce to a glaze
Add the black pepper.
Boil briskly uncovered on high heat.
Skim off any scum.
When it thickens and reduces to about a quart, transfer to a smaller stew-pan.
Set over low heat until it thickens to a syrupy consistency, being careful not to burn it.
Test by taking a spoonful; if it sets into a strong jelly, it is done.
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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Beef + peppertop 10% of all pairsSmell alikemoderateCooked together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Beef leg or shin bones
- Release collagen and gelatin into the water, giving the broth body that sets into a jelly.
- Whole black pepper
- Adds aroma and a mild spiciness that carries through the reduced glaze.
The step that matters
Reducing to a syrupy consistency over low heat. As water evaporates, the gelatin and sugars concentrate and can scorch quickly. Gentle heat and constant attention prevent burning and let the broth thicken into a glaze that sets when cool.
“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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