Why it works: Potato and onion 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 ↓
German Potato Salad
Ingredients
Directions
Make the dressing
Fry the diced bacon in a skillet until the grease is rendered but the bacon is not too hard.
In a bowl, mix the flour, dry mustard, sugar, salt, and white pepper.
Sprinkle the mixture into the skillet with the bacon, ensuring the grease is not too hot.
When the mixture thickens, add the vinegar and water, stirring well.
Let it boil until thick, then pour it over the cold boiled diced potatoes and chopped onion.
Stir the mixture well.
Serve
Serve warm or cold, garnished with finely minced parsley.
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.
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Mustard + oniontop 6% of all pairsSmell alikestrongCooked together9,259 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + potatotop 7% of all pairsSmell alikemoderateCooked together1,340 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Mustard + vinegartop 7% of all pairsSmell alikemoderateCooked together14,067 recipes
Shared aroma: isobutyraldehyde (malty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bacon
- Rendered fat carries flavor and gives the dressing a savory, smoky taste.
- Flour
- Thickens the dressing as it cooks with the fat and liquid.
- Vinegar
- Adds acidity that sharpens the dressing and balances the sugar.
- Sugar
- Adds sweetness that balances the sharp vinegar.
- Potatoes
- Form the body of the salad and soak up the warm dressing.
The step that matters
Sprinkling the flour mixture into the bacon fat. If the fat is too hot, the flour can scorch or clump instead of blending smoothly. Keeping the fat moderate lets the flour cook into a smooth, even base before the liquid goes in.
Swap the white pepper
How well each one fits the dish's main ingredients (flour, mustard, sugar, vinegar, potato, onion, parsley):
- Capersfits better
- Garlicfits better
- Tarragonfits better
- White pepperthe original
Fit is the average pairing score against flour, mustard, sugar, vinegar, potato, onion, parsley. 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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