Name: Combination Salad
Ingredients: 1 head of lettuce; 2 large tomatoes; 1 bunch of radishes; ½ cucumber or ½ can of asparagus; French dressing

Why it works: Lettuce and cucumber match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,409 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Combination Salad

Ingredients

Directions

Cut the tomatoes into thick slices.
Slice the radishes and cucumber thinly.
Combine all the vegetables in a bowl and cover with French dressing.

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.

Lettuce + cucumbertop 1% of all pairs

Smell alikestrong

Cooked together1,409 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Radish + cucumbertop 1% of all pairs

Smell alikestrong

Cooked together212 recipes

Shared aroma: eucalyptol (eucalyptus, herbal).
Lettuce + radishtop 2% of all pairs

Smell alikestrong

Cooked together58 recipes

Shared aroma: trans-2-hexenal (green, leafy).
Tomato + cucumbertop 4% of all pairs

Smell alikemoderate

Cooked together2,405 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Lettuce + tomatotop 6% of all pairs

Smell alikemoderate

Cooked together1,655 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

What each ingredient does

Lettuce: Provides a crisp, leafy base that adds bulk and light crunch to the salad.
Tomatoes: Add juiciness and a mild acidity that brightens the other vegetables.
Radishes: Add a sharp, peppery bite and a firm crunch.
Cucumber: Adds cool moisture and a crisp texture.
French dressing: Adds fat and acidity that coat the vegetables and carry flavour.