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 ↓
Potato Kugel
Ingredients
Directions
Prepare
Preheat oven to 425°F (220°C).
Peel potatoes and cut into chunks, then place in a food processor and process until smooth.
Peel onion and cut into chunks, then place in the food processor and process until smooth.
Mix and bake
Mix potato and onion with egg, pepper, sugar, and salt.
Heat oil in a 9 by 13 inch pan until it is quite hot.
Drop 1-2 tablespoons of the oil into the potato mixture, and mix.
Pour the potato mixture into the pan.
Bake uncovered for 1 hour.
Nutrition, whole recipe (rough)
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Potato | 1 medium (173g) baked | 161 |
| Olive Oil | 1 tbsp (14g) | 119 |
| Egg | 1 large egg (50g) | 78 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Onion | 1 medium (110g) | 44 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
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 + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
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Potato + eggtop 29% of all pairsSmell alikemoderateCooked together4,978 recipes
Shared aroma: (e)-2-octenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide the starchy bulk that gives the kugel its body once baked.
- Eggs
- Bind the grated mixture together and help it set firm as it bakes.
- Vegetable oil
- Heated in the pan to crisp the outside and add richness to the bake.
- Onion
- Adds savory flavor and moisture to the potato base.
The step that matters
Heat oil in the pan until it is quite hot. Hot oil in the pan starts searing the potato mixture on contact, which helps create a crisp, golden crust instead of a pale, greasy base.
Swap the onion
How well each one fits the dish's main ingredients (potato, egg, pepper, sugar):
- Capsicumfits better
- Asparagusfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against potato, egg, pepper, sugar. 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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