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 ↓
German Puff
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.
Make the batter
Warm the milk and add the butter until melted.
Let the mixture cool, then beat the egg yolks until thick and stir them into the milk mixture.
In a separate bowl, add the flour and mix in the milk mixture.
Whisk the egg whites until stiff and gently fold them into the batter.
Bake and serve
Butter a long square pan and fill it halfway with the mixture.
Bake in a hot oven at 400°F (200°C) until golden.
Serve hot with your preferred sauce.
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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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Egg yolks enrich and thicken the batter, while whipped whites lift it and give an airy structure.
- Flour
- Provides the starch and gluten that set the batter's structure as it bakes.
- Milk
- Supplies moisture and liquid that turns to steam, helping the puff rise in the oven.
- Butter
- Adds fat for richness and tenderness and helps the crust brown.
The step that matters
Fold in the egg whites gently. Whisked egg whites hold air bubbles that give the puff its lift. Stirring them vigorously deflates the foam, so the batter rises less in the oven.
“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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