Why it works: Egg and flour are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 106,462 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Maple Syrup 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).
Make and assemble the pie
In a bowl, mix the maple syrup, lemon rind, lemon juice, egg, and flour until well combined.
Pour the mixture into a pie crust.
Cover with the second pie crust, cutting narrow strips to create a lattice pattern on top.
Bake
Bake for 30-35 minutes or until the crust is golden brown.
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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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Lemon + eggtop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
-
Maple syrup + flourtop 24% of all pairsSmell alikelowCooked together1,034 recipes
Shared aroma: eugenol (clove, spicy).
-
Maple syrup + eggtop 24% of all pairsSmell alikemoderateCooked together1,156 recipes
Shared aroma: acetic acid (sour, vinegar).
Egg and flour barely smell alike, yet cooks put them together in 106,462 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
- Maple syrup
- Provides the main sweetness and the thick, filling body of the pie.
- Egg
- Helps the filling set and bind as it bakes.
- Flour
- Thickens the filling so it holds together when sliced.
- Lemon rind and juice
- Adds acidity and aroma that balance the sweetness of the syrup.
- Pie crusts
- Form the base and lattice top that contain the filling and brown in the oven.
The step that matters
Baking until the crust is golden brown. The filling is mostly sugar and egg, so it needs enough baking to set. Browning the crust signals that the filling has heated through; underbaking leaves it runny.
Swap the lemon
How well each one fits the dish's main ingredients (maple syrup, egg, flour):
- Raisinfits better
- Pumpkinfits better
- Vanillafits better
- Lemonthe original
Fit is the average pairing score against maple syrup, egg, 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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