Why it works: Butter and lemon are a kitchen classic. They rank in the top 16% of all ingredient pairs, and cooks put them together in 41,227 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
English Lemon Cheese Tarts
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
Line patty tins with rich pastry.
Bake the lined tins for 5 minutes.
Make the filling
Melt the butter in a saucepan.
Beat the eggs.
Add the sugar to the beaten eggs.
Stir the egg and sugar mixture into the melted butter.
Grate the rind of the lemon.
Add the grated rind and the lemon juice to the mixture.
Cook the filling until thick.
Fill and serve
Fill the tart shells with the thickened filling.
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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Butter + lemontop 16% of all pairsSmell alikemoderateCooked together41,227 recipes
Shared aroma: 3-hexenal (apple, fruity).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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
- Eggs
- Set the filling into a thick, custard-like texture when cooked.
- Butter
- Adds richness and a smooth, tender mouthfeel to the filling.
- Sugar
- Sweetens the filling and helps balance the sharpness of the lemon.
- Lemon
- Provides the tart, bright flavour and aroma; the rind adds fragrant oils.
The step that matters
Cook the filling until thick. Egg proteins thicken as they heat and set, but overheating or cooking too long can curdle the eggs and leave the filling grainy. Stop once it coats a spoon.
Swap the lemon
How well each one fits the dish's main ingredients (egg, butter, sugar):
- Vanillafits better
- Lemonthe original
- Raisinfits about as well
- Figfits about as well
Fit is the average pairing score against egg, 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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