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 ↓
Pop-overs
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
Preheat the oven to 400°F (200°C).
Butter twelve small earthenware jars and place them in the oven to heat.
Make the batter
In a bowl, mix flour, milk, egg yolks, and salt to form a smooth batter.
Beat the egg whites until stiff peaks form.
Quickly fold the beaten egg whites into the batter.
Bake and serve
Pour the batter into the hot buttered jars.
Bake until the pop-overs rise and are brown at the sides.
Turn them out of the jars and serve immediately on a hot dish covered with a napkin.
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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Flour + milktop 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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Egg + buttertop 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
- All-purpose flour
- Provides the structure that holds the risen popover walls in shape.
- Eggs
- Yolks add richness and the whites, beaten to stiff peaks, provide the air that lifts the batter.
- Milk
- Adds moisture and turns to steam in the hot oven, helping the popovers rise.
- Butter
- Greases the hot jars so the batter releases cleanly and the outside browns.
The step that matters
Quickly fold the beaten egg whites into the batter. Egg white foam traps air that expands in the oven to lift the popovers. Overmixing or letting the foam deflate before baking leads to flat, dense results.
“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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