Why it works: Potato and parsley are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 2,855 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Mashed Potatoes
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare the potatoes
Peel the potatoes and soak them in cold water for 30 minutes.
Steam the potatoes over boiling water until tender and mealy.
Mash the potatoes in a warm bowl using a potato masher.
Make the mash
Season the mashed potatoes with salt.
Add butter to the mashed potatoes.
Mix in the milk until smooth.
Finish and serve
Transfer the mashed potatoes to a deep dish and smooth the top.
Place the dish in a 400°F (200°C) oven for a few minutes to create a crispy top.
Score the top with a steel bar for a golden brown finish (alternative to oven).
Mold the mashed potatoes into shapes.
Immerse the molded potatoes in hot lard until golden brown.
Garnish with curled parsley leaves before serving.
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 + parsleytop 5% of all pairsSmell alikemoderateCooked together2,855 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + milktop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potatoes
- Provide the starchy base that becomes soft, fluffy and creamy when mashed.
- Butter
- Adds richness and fat, giving the mash a smoother mouthfeel and flavor.
- Rich milk
- Adds moisture and dairy richness, loosening the mash into a smooth texture.
- Hot lard
- Fries the molded potatoes, creating a golden brown, crisp surface through browning.
The step that matters
Steam until tender and mealy. Potatoes that are undercooked stay firm and lumpy when mashed, while well-cooked starch breaks down into a smooth, fluffy texture.
Swap the parsley
How well each one fits the dish's main ingredients (potato, butter, milk):
- Cinnamonfits better
- Nutmegfits about as well
- Parsleythe original
- Thymefits about as well
Fit is the average pairing score against potato, butter, milk. 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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