Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Creamed Potatoes
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
In a bowl, combine the potatoes with salt, pepper, parsley, and onion juice if using.
Assemble and bake
Reheat the potato mixture in the White Sauce until warmed through.
Transfer the mixture to a buttered baking dish.
Top with buttered crumbs and bake until heated throughout and crumbs are brown.
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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Pepper + parsleytop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Potato + oniontop 3% of all pairsSmell alikemoderateCooked together9,023 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Potato + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Parsley + oniontop 9% of all pairsSmell alikemoderateCooked together25,843 recipes
Shared aroma: 2,4-decadienal (seaweed).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 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
- Potatoes
- Form the bulk of the dish, giving body and a soft, tender texture once heated.
- White sauce
- Provides moisture and creaminess, binding the potatoes together in a smooth coating.
- Buttered crumbs
- Form a topping that browns in the oven, adding color and a crisp contrast.
The step that matters
Bake until the crumbs are brown and the mixture is heated throughout. Browning depends on surface heat and fat in the crumbs, while the center must be hot all the way through. Stopping early leaves the topping pale and the potatoes lukewarm in the middle.
Swap the onion
The recipe marks onion as optional. How well each one fits the dish's main ingredients (potato, pepper, parsley, sauce, butter):
- Carrotfits better
- Capsicumfits better
- Chivefits better
- Onionthe original
Fit is the average pairing score against potato, pepper, parsley, sauce, butter. 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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