Why it works: Butter and flour 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 ↓
Pineapple Pie
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare
Preheat the oven to 350°F (175°C).
Grate the pineapples and sweeten them to taste.
Make the filling
In a saucepan, melt the butter and stir in the flour until smooth.
Add the grated pineapple to the butter mixture and combine well.
Bake and serve
Pour the filling into the pie crust(s).
Bake for 30-40 minutes or until the crust is golden.
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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Butter + flourtop 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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Pineapple + buttertop 17% of all pairsSmell alikemoderateCooked together1,134 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Pineapple + sugartop 19% of all pairsSmell alikelowCooked together4,841 recipes
Shared aroma: 2-nonenal (fatty, green).
Butter and flour 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
- Pineapples
- Supplies the bulk of the filling, along with its juice, moisture and fruity flavour.
- Sugar
- Sweetens the tart pineapple and balances its acidity.
- Butter
- Adds richness and a rounded flavour to the filling.
- Flour
- Thickens the pineapple juice so the filling can set rather than run.
- Pie crust
- Holds the filling in shape and browns during baking.
The step that matters
Stir the flour into the butter until smooth before adding the pineapple. Flour lumps stay raw and chalky if not dispersed in fat first. Starch thickens the pineapple juice only when heated long enough, so the pie should bake until the crust is golden and the filling bubbles before it is cut.
Swap the pineapple
How well each one fits the dish's main ingredients (sugar, butter, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Pineapplethe original
Fit is the average pairing score against sugar, butter, flour. Candidates are from the same food group and used in at least 100 recipes.
“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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