Name: Potato and Cucumber Salad
Ingredients: 1 large cucumber, sliced thin; 1 medium onion, sliced thin; 1 cup sour cream; 1 tablespoon butter; 1 teaspoon sugar; Vinegar to taste; Cooked potatoes, sliced; Beets, sliced

Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Potato and Cucumber Salad

Ingredients

Directions

Make the dressing

Melt the butter in a saucepan, add the sour cream and sugar, cook until thick, then remove from heat and add vinegar to taste.

Assemble the salad

In a bowl, layer the sliced potatoes, beets, cucumber, onion, and dressing. Repeat the layers until the bowl is full.

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.

Onion + potatotop 3% of all pairs

Smell alikemoderate

Cooked together9,023 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Cream + buttertop 8% of all pairs

Smell alikemoderate

Cooked together41,516 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Cucumber + oniontop 8% of all pairs

Smell alikestrong

Cooked together6,050 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Cucumber + vinegartop 8% of all pairs

Smell alikemoderate

Cooked together4,734 recipes

Shared aroma: 2-methylbutyl acetate (fruit).
Cucumber + potatotop 9% of all pairs

Smell alikestrong

Cooked together481 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

Sour cream: Forms a thick, creamy dressing that coats the vegetables and adds tang.
Cucumber: Adds crisp, watery texture that contrasts with the soft potatoes and beets.
Potatoes: Provide the starchy, soft base layer that absorbs some of the dressing.
Onion: Adds sharp, pungent flavour that cuts through the richness of the dressing.

The step that matters

Cook the dressing until thick. Sour cream can separate or turn grainy if overheated. Cooking gently over low heat and removing it from the heat before adding vinegar keeps it smooth and stable, and adding acid off the heat prevents curdling.

Swap the cucumber

How well each one fits the dish's main ingredients (onion, cream, butter, sugar, vinegar, potato):

Chivefits better
Mustardfits better
Leekfits better
Cucumberthe original

Fit is the average pairing score against onion, cream, butter, sugar, vinegar, potato. 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.

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Potato and Cucumber Salad