Why it works: Flour and milk are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Breakfast Puffs or Pop-overs
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C) and grease gem tins or small earthen cups.
In a bowl, mix the salt with the flour.
Make the batter
Slowly add part of the milk to the flour until a smooth paste forms.
Add the remaining milk along with the beaten egg yolk.
Fold in the beaten egg white until well combined.
Bake
Pour the batter into the prepared tins and bake for 30 minutes or until golden brown.
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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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).
-
Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and milk barely smell alike, yet cooks put them together in 78,219 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 starch and protein that give the pop-overs their structure as they set.
- Milk
- Adds moisture that turns to steam in the hot oven, helping the batter rise.
- Egg
- Sets the batter and, with the whipped white, adds lift and a tender structure.
The step that matters
Fold in the beaten egg white. Folding gently keeps the air trapped in the egg white, which is what lifts the batter. Stirring vigorously knocks that air out and the pop-overs rise less.
“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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