Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 9,023 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Anna Roubik
Ingredients
Directions
Prepare the potatoes
Scrub potatoes.
Boil potatoes until tender.
Drain potatoes, while hot peel and cut into one-fourth-inch slices, add salt and pepper.
Make the dressing
Place bacon in skillet and pour over it two tablespoons of boiling water, and let fry light brown.
Add vinegar, water, sugar and flour mixed with one-fourth cup of cold water.
Cook until smooth.
Combine and serve
Pour one-quarter cup boiling water over potatoes before adding dressing.
Pour over sliced potatoes, add onions and mix thoroughly.
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. See the original page.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Potato + oniontop 3% of all pairsAroma overlapmoderateMentioned together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Potato + peppertop 9% of all pairsAroma overlapmoderateMentioned together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsAroma overlapmoderateMentioned together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Vinegar + oniontop 14% of all pairsAroma overlapmoderateMentioned together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
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Vinegar + peppertop 14% of all pairsAroma overlapmoderateMentioned together27,814 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Form the bulk of the salad and absorb the dressing as they sit warm.
- Bacon
- Supplies fat and smoky flavor that carries into the dressing.
- Vinegar
- Provides the sharp acidity that defines the dressing.
- Sugar
- Balances the acidity of the vinegar with sweetness.
- Flour
- Thickens the dressing so it becomes smooth and clings to the potatoes.
- Onion
- Adds sharp aroma and a crisp bite against the soft potatoes.
The step that matters
Cook the dressing until smooth. Flour must be fully cooked in the hot liquid to thicken evenly. Stirring it into the mixture as it heats keeps it from clumping, which would leave lumps in the dressing.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (potato, vinegar, sugar, flour, pepper):
- Capsicumbetter flavor fit
- Mustardbetter flavor fit
- Beetrootbetter flavor fit
- Onionthe original
Fit is the average pairing score against potato, vinegar, sugar, flour, pepper. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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