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 ↓
Tomato Pie
Ingredients
Directions
The book gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Remove the skins from the tomatoes and slice them thin.
Place the sliced tomatoes into the pie crust.
Add sugar, butter, vinegar, and flour to the tomatoes.
Put strips of pie crust across the top.
Bake
Bake at 300°F (150°C) until thoroughly done.
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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Sugar + vinegartop 15% of all pairsSmell alikemoderateCooked together20,806 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Tomato + vinegartop 16% of all pairsSmell alikemoderateCooked together5,063 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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
- Yellow tomatoes
- Provide the main filling, releasing juice as they cook to make the body of the pie.
- Sugar
- Adds sweetness and balances the acidity of the tomatoes.
- Flour
- Thickens the juices released by the tomatoes so the filling sets rather than running.
- Vinegar
- Adds acidity that brightens the flavor of the tomatoes.
- Butter
- Adds richness and fat that carries flavor and softens the filling.
The step that matters
Bake until thoroughly done. Sliced tomatoes release a lot of liquid, and the flour only thickens it when the filling is fully heated. Underbaking leaves the filling runny and the crust soggy.
Swap the tomato
How well each one fits the dish's main ingredients (sugar, butter, vinegar, flour):
- Shallotfits better
- Mustardfits better
- Arrowrootfits better
- Tomatothe original
Fit is the average pairing score against sugar, butter, vinegar, 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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