Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Vinegar Pie
Ingredients
Directions
Make the filling
Boil sugar and vinegar together, then cool.
Add flour, egg, rolled cracker, and butter to the mixture.
Mix well and pour into a prepared pie crust.
Assemble and bake
Cover with the second pie crust and bake.
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 + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
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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
- Sugar
- Provides sweetness and, once boiled with the vinegar, a syrupy body to the filling.
- Vinegar
- Supplies the sharp, acidic flavour that defines the pie.
- Flour
- Thickens the filling so it sets rather than running.
- Egg
- Adds structure and helps the filling set as it bakes.
- Rolled cracker
- Absorbs liquid and adds body, helping the filling thicken.
- Butter
- Adds fat for richness and a smoother, softer texture.
The step that matters
Cool the boiled sugar and vinegar before adding the egg. Hot liquid can scramble the egg instead of blending it smoothly. Cooling first lets the egg incorporate evenly so the filling sets with a uniform texture.
“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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