Why it works: Walnut and olive match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 2,087 recipes. Both carry 2-undecenal, which smells sweet. The science ↓
Devilled Eggs
Ingredients
Directions
Prepare the filling
Remove the yolks from the hard‑boiled eggs and place them in a bowl.
Mix the yolks with the mustard, olive oil, and seasonings using the back of a spoon.
Make the white sauce
In a chafing dish, combine the milk, butter mixed with corn starch, and finely chopped egg whites.
Stir constantly until the mixture is boiling hot.
Assemble and serve
Spread the yolk mixture thickly on slices of buttered toast.
Sprinkle grated Parmesan cheese over the yolk mixture, then pour the hot white sauce on top and serve.
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.
-
Walnut + olivetop 6% of all pairsSmell alikestrongCooked together2,087 recipes
Shared aroma: 2-undecenal (sweet).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Mustard + olivetop 8% of all pairsSmell alikestrongCooked together5,950 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
-
Butter + parmesan cheesetop 9% of all pairsSmell alikemoderateCooked together4,163 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Walnut + mustardtop 9% of all pairsSmell alikestrongCooked together849 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Yolks form the rich, creamy filling, while the chopped whites add body to the sauce.
- Butter
- Adds richness and fat, and helps carry flavor through the sauce.
- Corn starch
- Thickens the milk as it heats, giving the sauce a smooth, spoonable body.
- Milk
- Forms the liquid base of the white sauce that the starch thickens.
- Dry mustard
- Adds sharp, pungent flavor that cuts through the richness of the yolks.
- Parmesan cheese
- Contributes savory, salty flavor to the yolk topping.
The step that matters
Stir constantly until the mixture is boiling hot. Corn starch only thickens fully once it reaches a boil. Constant stirring spreads the heat evenly, prevents lumps and scorching at the bottom, and gives a smooth sauce.
Swap the mustard
How well each one fits the dish's main ingredients (egg, butter, walnut, milk, corn, parmesan cheese, olive):
- Capsicumfits better
- Asparagusfits better
- Potatofits better
- Mustardthe original
Fit is the average pairing score against egg, butter, walnut, milk, corn, parmesan cheese, 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.
More deviled eggs recipes
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.
Corn Fritters203 recipes
Macaroni and Cheese102 recipes
Cheese Making50 recipes
Cream of Corn Soup50 recipes