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 Dumplings
Ingredients
Directions
Prepare the dough
Grate the raw potatoes.
Drain off all the water.
Squeeze the grated potatoes in a cloth.
Combine the grated raw potatoes with the cold boiled potatoes and other ingredients.
Form the mixture into balls the size of a goose egg.
Cook the dumplings
Boil the dumplings in water for half an hour or until they rise to the top.
Make the onion sauce
Fry the chopped onion in butter until brown.
Add water and vinegar to the fried onion.
Thicken the sauce with flour mixed with cold water.
Season the sauce with pepper and salt.
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.
-
Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Egg + breadtop 13% of all pairsSmell alikemoderateCooked together22,662 recipes
Shared aroma: (e)-2-octenal (fatty, green).
-
Onion + vinegartop 14% of all pairsSmell alikemoderateCooked together18,226 recipes
Shared aroma: acetic acid (sour, vinegar).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Raw potatoes
- Provide starch and moisture that bind the dough and give the dumplings body.
- Eggs
- Bind the dough so the dumplings hold their shape during boiling.
- Flour
- Adds structure to the dough and thickens the sauce.
- Baking powder
- Releases gas that lightens the dumpling dough so it rises.
- Bread
- Adds fried, diced pieces that add texture and absorb moisture in the dough.
- Onion
- Browned in fat to give the sauce sweetness and savoury depth.
The step that matters
Squeeze the grated potatoes in a cloth. Raw grated potato holds a lot of liquid. Removing it keeps the dough firm enough to shape and stops the dumplings from turning heavy or falling apart in the water.
Swap the onion
How well each one fits the dish's main ingredients (potato, egg, flour, bread, vinegar, pepper):
- Capsicumfits better
- Chivefits better
- Shallotfits better
- Onionthe original
Fit is the average pairing score against potato, egg, flour, bread, vinegar, pepper. 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.
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.
Brown Bread461 recipes
Potato Croquettes255 recipes
White Bread80 recipes
Potato Rolls78 recipes