Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
A Fondu
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Make the base
Mix the new milk with the potato flour or arrowroot to form a smooth batter.
In a saucepan, heat the additional milk or cream until boiling, then stir it into the batter.
Add the butter and stir until melted and well combined.
Finish and bake
Incorporate the egg yolks, salt, cayenne, and grated cheese into the mixture.
Whisk the egg whites until firm and fold them into the mixture gently.
Pour the mixture into a baking dish and bake at 350°F (175°C) for 20 minutes.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + cheesetop 8% of all pairsSmell alikemoderateCooked together7,962 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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Milk + potatotop 9% of all pairsSmell alikemoderateCooked together3,611 recipes
Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
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Milk + cheesetop 10% of all pairsSmell alikemoderateCooked together4,426 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Potato flour or arrowroot
- Thickens the milk into a smooth base that holds the fondue together.
- Eggs
- Yolks add richness and set the mixture; whites are whisked to add lift and airy structure.
- Cheese
- Provides the main flavour and, as it melts, gives the fondue its body and savoury taste.
- Butter
- Adds fat for a smoother, richer texture and a rounder flavour.
The step that matters
Folding in the whisked egg whites. Whites hold air only when whisked until firm. Folding gently keeps that air in the mixture so it rises and stays light in the oven instead of deflating into a dense result.
Swap the potato
How well each one fits the dish's main ingredients (milk, butter, egg, pepper, cheese):
- Potatothe original
- Capsicumfits about as well
- Asparagusfits less well
- Tomatofits less well
Fit is the average pairing score against milk, butter, egg, pepper, cheese. 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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