Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Potato Casserole
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.
Make the potato mixture
Combine mashed potatoes, egg yolks, cream, and butter in a pot.
Stir over low heat until hot.
Beat the mixture until very light, then season with salt and pepper.
Shape and bake
Form the mixture into a neat border on a baking sheet or platter.
Brush the border with beaten egg and bake in a 400°F (200°C) oven until golden brown.
Fill the center with fricasseed chicken, rabbit, or veal, and serve.
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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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Potato + peppertop 9% of all pairsSmell alikemoderateCooked together8,305 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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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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Potato + creamtop 17% of all pairsSmell alikelowCooked together2,481 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mashed potatoes
- Provide the bulk and body that hold the casserole's shape.
- Egg yolks
- Enrich the mixture and help it set firm when baked.
- Eggs
- Beaten egg brushed on the border promotes browning and a glossy golden surface.
- Cream
- Adds moisture and richness, keeping the potato mixture soft and smooth.
- Butter
- Adds fat for richness and a smoother, silkier texture.
The step that matters
Beating the mixture until very light. Beating incorporates air into the warm potato and yolk mixture, which gives a lighter, fluffier texture. Over-beating or letting it cool can make it dense and stiff, so beat while it is still warm and proceed promptly to shaping.
Swap the potato
How well each one fits the dish's main ingredients (egg, butter, cream, pepper):
- Potatothe original
- Spinachfits about as well
- Asparagusfits about as well
- Capsicumfits about as well
Fit is the average pairing score against egg, butter, cream, 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.
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