Name: Tuna Salad
Ingredients: 1 can (6–9½ oz / ~170–270 g) tuna; ¼ apple , finely chopped; ½ stalk celery , finely chopped; ¼ cup mayonnaise (low fat can work); 1 tsp lemon juice; ½ ea . chopped green onion or ½ tsp dried chopped white or yellow onion; 1 hard boiled egg , chopped (or two hard boiled egg whites and a bit of oil olive oil to make up the difference); Ground black pepper to taste; Paprika (optional); Lettuce (optional)

Why it works: Lemon and pepper 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 ↓

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.

Lemon + peppertop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Celery + lemontop 3% of all pairs

Smell alikestrong

Cooked together3,467 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Celery + lettucetop 4% of all pairs

Smell alikestrong

Cooked together2,033 recipes

Shared aroma: nonanal (fat, citrus).
Celery + peppertop 5% of all pairs

Smell alikestrong

Cooked together16,012 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Celery + oniontop 7% of all pairs

Smell alikemoderate

Cooked together18,518 recipes

Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Tuna: Provides the main body and savory flavor of the salad.
Mayonnaise: Adds moisture and fat, binding the salad into a creamy texture.
Egg: Adds body and richness, helping the salad hold together.
Lemon juice: Adds acidity that brightens the flavor and balances the mayonnaise.
Celery: Adds crisp texture and fresh, mild crunch to the salad.
Apple: Adds subtle sweetness and crunch that contrasts with the creamy base.

The step that matters

Drain and squeeze the tuna dry. Excess liquid left in the tuna dilutes the mayonnaise and makes the salad watery and loose. Removing it keeps the texture thick and creamy after chilling.

Swap the lettuce

The recipe marks lettuce as optional. How well each one fits the dish's main ingredients (apple, celery, lemon, onion, egg, pepper):

Carrotfits better
Capsicumfits better
Spinachfits about as well
Lettucethe original

Fit is the average pairing score against apple, celery, lemon, onion, egg, pepper. 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.

Ingredient	Portion assumed	kcal
Salmon	100g cooked	208
Olive Oil	1 tbsp (14g)	119
Apple	1 medium (182g)	95
Egg	1 large egg (50g)	78
Green Onion	1 medium (110g)	44
Onion	1 medium (110g)	44
Lemon	juice of 1 lemon (48ml)	12
Celery	1 stalk (40g)	6
Black Pepper	1 tsp ground (2.3g)	6
Lettuce	1 cup shredded (36g)	5

Tuna Salad

Tuna Salad

Ingredients

Directions

Prepare

Chill and serve

Nutrition, whole recipe (rough)