Why it works: Rhubarb and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 546 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Raisin and Rhubarb Pie
Ingredients
Directions
Prepare the filling
Cover rhubarb with boiling water and let stand for 5 minutes, then drain the rhubarb.
Mix rhubarb and raisins in a bowl.
Add sugar, lemon juice, lemon rind, and egg to the mixture.
Bake the pie
Pour the filling between two pie crusts.
Bake at 450°F (230°C) for 10 minutes.
Reduce temperature to 400°F (200°C) and bake for an additional 20 to 25 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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Rhubarb + lemontop 7% of all pairsSmell alikestrongCooked together546 recipes
Shared aroma: acetic acid (sour, vinegar).
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Rhubarb + raisintop 9% of all pairsSmell alikemoderateCooked together47 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Raisin + sugartop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
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Raisin + lemontop 14% of all pairsSmell alikemoderateCooked together3,742 recipes
Shared aroma: decanal (soap, orange peel).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Rhubarb
- Provides tart flavor and moisture that softens into the filling as it bakes.
- Raisins
- Add chewy texture and concentrated sweetness that balances the rhubarb's tartness.
- Sugar
- Sweetens the filling and helps balance the sharp acidity of rhubarb and lemon.
- Egg
- Binds the filling and helps it set as it bakes.
The step that matters
Draining the rhubarb after scalding. Rhubarb releases a lot of liquid when heated. Draining it well keeps the filling from becoming watery, which can make the pie soggy and stop it from setting properly.
Swap the rhubarb
How well each one fits the dish's main ingredients (raisin, sugar, lemon, egg):
- Cinnamonfits better
- Nutmegfits better
- Gingerfits about as well
- Rhubarbthe original
Fit is the average pairing score against raisin, sugar, lemon, egg. 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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