Why it works: Flour and egg are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 106,462 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
French Batter for Frying Vegetables
Ingredients
Directions
Make the batter
Moisten the flour with water.
Add salt, olive oil, and brandy; mix thoroughly.
Finish and use
When ready to use, beat the egg white to a strong froth and fold it into the batter.
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 + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Brandy + eggtop 17% of all pairsSmell alikemoderateCooked together7,340 recipes
Shared aroma: acetoin (butter, cream).
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Flour + olivetop 19% of all pairsSmell alikemoderateCooked together16,871 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + brandytop 25% of all pairsSmell alikelowCooked together4,181 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Olive + brandytop 26% of all pairsSmell alikemoderateCooked together340 recipes
Shared aroma: (z)-hex-3-en-1-ol (freshly cut grass green and herbaceous notes).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Forms the main structure of the batter, setting as it cooks and coating the vegetables.
- Egg white
- Beaten to a froth and folded in, it lightens the batter and makes it crisp and airy when fried.
- Olive oil
- Adds fat that helps the batter fry crisp and tender rather than dry.
- French brandy
- Adds a small amount of alcohol that evaporates in hot oil, helping the coating turn crisp.
The step that matters
Folding in the beaten egg white. Egg white beaten to a strong froth traps air that lightens the batter. Folding gently keeps those bubbles; stirring hard would deflate them and leave a heavier coating.
“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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