Name: Egg Salad
Ingredients: hard-boiled eggs; dressing; celery salt; chopped mace or parsley; lettuce leaves; mayonnaise

Why it works: Celery and lettuce match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and cooks put them together in 2,033 recipes. Both carry nonanal, which smells fat, citrus. The science ↓

Egg Salad

Ingredients

Directions

Cut hard-boiled eggs in half and remove the yolks.
Mash the yolks and mix in the dressing until moistened.
Season the mixture with celery salt and chopped mace or parsley.
Stuff the egg whites with the yolk mixture.
Arrange the stuffed egg whites on lettuce leaves and serve with mayonnaise.

Recipe from a historical cookbook (Internet Archive).

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.

Celery + lettucetop 4% of all pairs

Smell alikestrong

Cooked together2,033 recipes

Shared aroma: nonanal (fat, citrus).
Celery + macetop 17% of all pairs

Smell alikemoderate

Cooked together2,769 recipes

Shared aroma: myristicin (spice, warm).
Mace + lettucetop 28% of all pairs

Smell alikelow

Cooked together251 recipes

Shared aroma: eugenol (clove, spicy).
Egg + lettucetop 30% of all pairs

Smell alikelow

Cooked together3,301 recipes

Shared aroma: nonanal (fat, citrus).
Egg + celerytop 34% of all pairs

Smell alikelow

Cooked together6,334 recipes

Shared aroma: nonanal (fat, citrus).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Flavor stand-ins for the mace

How well each one fits the dish's main ingredients (egg, celery, lettuce):

Tarragonbetter flavor fit
Capersbetter flavor fit
Parsleybetter flavor fit
Macethe original

Fit is the average pairing score against egg, celery, lettuce. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).