Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Fondu of Celery
Ingredients
Directions
The book says “a moderate oven”. The 350°F in the steps is the modern equivalent, not the book's own figure.
Prepare the celery
Wash and clean the celery, then chop it finely.
Place the chopped celery in a saucepan and cover with cold water. Add salt.
Strain the celery and transfer it to another saucepan. Add milk and bouquet garni.
Cook until the celery is tender enough to pass through a sieve.
Make the fondue base
Add butter and flour, cooking until the mixture thickens.
Season with salt and cayenne pepper, then stir in lemon juice.
Beat the egg yolks until creamy, then fold in the whipped egg whites.
Bake
Pour the mixture into ramekin cases, filling them halfway.
Sprinkle with bread crumbs and add a small piece of butter on top.
Bake in a moderate oven (350°F / 175°C) for 15 minutes.
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.
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Celery + lemontop 3% of all pairsSmell alikestrongCooked together3,467 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Celery + peppertop 5% of all pairsSmell alikestrongCooked together16,012 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Celery
- Provides the main flavour and, once cooked and sieved, the body of the fondue.
- Milk
- Adds moisture and creaminess, softening the celery into a smooth base.
- Butter
- Adds richness and fat, helping the sauce feel smooth and well rounded.
- All-purpose flour
- Thickens the mixture as it cooks, giving the fondue its body.
- Egg yolks
- Enrich the base and help it set into a custard-like texture when baked.
- Egg whites
- Whipped and folded in, they add lightness and help the fondue rise in the oven.
The step that matters
Folding in the egg whites. Whipped whites hold air that gives the fondue lift. Folding gently keeps that air in; stirring hard deflates the mixture and leaves it dense.
Swap the celery
How well each one fits the dish's main ingredients (milk, butter, flour, pepper, lemon, egg, bread):
- Parsleyfits better
- Nutmegfits better
- Marjoramfits better
- Celerythe original
Fit is the average pairing score against milk, butter, flour, pepper, lemon, egg, bread. 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.
Brown Bread461 recipes
Lemon Sauce236 recipes
Cream of Celery Soup113 recipes
White Bread80 recipes