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 ↓
Fruit Tart
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 the fruit
Prepare the fruit: if using apples, peel, core, and cut them into pieces.
Place them in a pie dish, add sugar to taste, and pour in a little water.
Make the pastry
Mix the flours, then rub in the butter or dripping.
Add 2 teaspoons of castor sugar.
Mix with enough water to form a stiff paste.
Turn the pastry onto a floured board and roll it out larger than the pie dish.
Assemble and bake
Cut strips to line the edge of the dish, wet the dish, and fit the strips around.
Wet the paste and cover with the top crust.
Mark the edge with the back of a knife, brush the top with water, and dredge with castor sugar.
Bake in a 400°F (200°C) oven for about 30 minutes.
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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Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Apple + sugartop 18% of all pairsSmell alikelowCooked together16,478 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Flour
- Forms the structure of the pastry once mixed with water and butter.
- Butter or dripping
- Rubbed into the flour to add fat, making the pastry tender and short.
- Apples, plums, or other fruit
- Supplies the filling, providing moisture and fruit flavour as it bakes.
The step that matters
Mix with enough water to form a stiff paste. Too much water makes the pastry tough and sticky, while too little leaves it crumbly and hard to roll. Adding water gradually until the dough just holds together gives a workable, tender crust.
Swap the apple
How well each one fits the dish's main ingredients (flour, butter, sugar):
- Raisinfits better
- Vanillafits better
- Figfits better
- Applethe original
Fit is the average pairing score against flour, butter, sugar. 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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