Name: Potato Soup
Ingredients: 1 medium potato; 2 cups boiling water; ¼ teaspoon salt; 2 tablespoons rich cream; a shake of black pepper

Why it works: Potato and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Potato Soup

Ingredients

Directions

Prepare

Peel and chop the potato finely.
Put the potato into a saucepan with the boiling water and salt.
Boil until the potato is thoroughly cooked.

Finish and serve

Add the cream and pepper, then simmer for 3 minutes.
Serve hot with dry toast or unleavened wafers.

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.

Photo for illustrative purposes only · Contact us to use it

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.

Potato + peppertop 9% of all pairs

Smell alikemoderate

Cooked together8,305 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + creamtop 17% of all pairs

Smell alikelow

Cooked together2,481 recipes

Shared aroma: 1-octen-3-one (mushroom, metallic).
Cream + peppertop 23% of all pairs

Smell alikelow

Cooked together21,449 recipes

Shared aroma: acetic acid (sour, vinegar).

Cream and pepper barely smell alike, yet cooks put them together in 21,449 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Potato: Breaks down as it cooks, giving the soup its body and thickness.
Rich cream: Adds fat and smoothness, softening the flavour and giving a richer mouthfeel.