Why it works: Milk and flour are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 78,219 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Lemon Meringue 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.
Make the filling
Grate 1 lemon and add the juice of another lemon.
Beat the yolks of 3 eggs and sweeten to taste.
Stir in 2 cups of milk with 2 tablespoons of flour dissolved in it until smooth. Add the milk mixture to the lemon, stirring continuously until mixed.
Bake the pie
Dust a little flour over the bottom of the pie crust, pour in the mixture, and bake at 350°F (175°C) until set. Remove from the oven and cool for a few minutes.
Make and add the meringue
Beat the whites of 3 eggs to a stiff froth, then add 3 tablespoons of powdered sugar and beat together. Spread the meringue over the top of the lemon filling and bake quickly at 400°F (200°C) until 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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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 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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Lemon + milktop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Lemon + flourtop 17% of all pairsSmell alikemoderateCooked together30,404 recipes
Shared aroma: isobutyraldehyde (malty, green).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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
- Egg yolks
- Thicken the filling and add richness as they set with the milk.
- Flour
- Thickens the milk mixture so the filling holds its shape when sliced.
- Egg whites
- Whipped into a stiff foam that forms the meringue topping.
- Lemon juice
- Provides the sharp acidity that balances the sweetness of the filling.
- Milk
- Forms the body of the custard filling with the egg yolks.
The step that matters
Baking the meringue quickly. Meringue sugar and whites can weep or shrink if baked too long, while brief high heat sets and browns the surface before the filling and foam deflate.
Swap the lemon
How well each one fits the dish's main ingredients (egg, sugar, milk, flour):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against egg, sugar, milk, 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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