Why it works: Onion and olive are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 29,779 recipes. Both carry 2,4-decadienal, which smells seaweed. The science ↓
Chicken Aspic From the Stock
Ingredients
Directions
Prepare the stock
Cut the onion into pieces and add it to the stock.
Let it sit or heat to season.
Make the aspic
Soak the gelatin in ½ cup cold water.
Pour the hot strained stock over the soaked gelatin.
When nearly cold, pour the mixture into a mold.
Set and serve
Add the yolks or whole eggs and the stuffed olives to the mold.
Chill until set.
Serve the chicken salad in the aspic, garnished with cucumber daisies on lettuce.
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.
-
Onion + olivetop 8% of all pairsSmell alikemoderateCooked together29,779 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Pepper + olivetop 11% of all pairsSmell alikemoderateCooked together30,263 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Gelatin + eggtop 28% of all pairsSmell alikelowCooked together1,449 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Gelatin + oniontop 31% of all pairsSmell alikelowCooked together211 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Gelatin
- Sets the stock into a firm, sliceable jelly as it cools.
- Steamed stock
- Provides the liquid and savory flavor that the gelatin sets into aspic.
- Eggs
- Add firm texture and richness in contrast to the clear jelly.
The step that matters
Pour the mixture into the mold when nearly cold. If the stock is still too hot, the gelatin cannot set properly and the aspic may stay soft. If it is too cold, it begins to set before filling the mold, leaving lumps and uneven layers. Gelatin sets as it cools, so timing matters.
Swap the onion
How well each one fits the dish's main ingredients (gelatin, pepper, egg, olive):
- Capsicumfits better
- Tomatofits better
- Lettucefits better
- Onionthe original
Fit is the average pairing score against gelatin, pepper, egg, olive. Candidates are from the same food group and used in at least 100 recipes.
“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.
Tomato Soup526 recipes
Brown Bread461 recipes
Mutton Broth292 recipes
Yorkshire Pudding264 recipes