Why it works: Rhubarb and orange work together. They rank in the top 5% of all ingredient pairs, and cooks put them together in 299 recipes. Both carry 2-methoxy-4-vinylphenol, which smells clove, smoky. The science ↓
Rhubarb Pie
Ingredients
Directions
Prepare the rhubarb
Peel the rhubarb stalks and cut them into ½ inch pieces.
Pour boiling water over the rhubarb and let it cool.
Make the filling
Once cool, mix in sugar, a little butter, and a sprinkling of flour.
Add the juice of half an orange for flavor.
Bake and serve
Bake the mixture between two pie crusts.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Rhubarb + orangetop 5% of all pairsSmell alikemoderateCooked together299 recipes
Shared aroma: 2-methoxy-4-vinylphenol (clove, smoky).
-
Rhubarb + flourtop 7% of all pairsSmell alikestrongCooked together670 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
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
- Rhubarb
- Provides the main tart flavor and the bulk of the pie filling.
- Sugar
- Sweetens the filling and balances the rhubarb's tartness.
- Butter
- Adds richness and fat that carries flavor in the filling.
- Flour
- Thickens the juices released by the rhubarb so the filling sets.
- Orange
- Adds bright acidity and citrus aroma to the rhubarb.
Swap the orange
How well each one fits the dish's main ingredients (rhubarb, sugar, butter, flour):
- Vanillafits better
- Raisinfits better
- Figfits better
- Orangethe original
Fit is the average pairing score against rhubarb, 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.
More rhubarb pie recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Orange Bundt Cake349 recipes
Orange Cream Rice Pudding121 recipes
Orange Gelatin100 recipes
Orange Sherbet73 recipes