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 ↓
Welsh Puddings
Ingredients
Directions
Make the filling
Melt the butter without water.
Gradually add the melted butter to the beaten egg yolks and egg whites.
Sweeten with white sugar and season with lemon zest.
Bake and finish
Pour the mixture into a dish lined with a pastry border.
Bake until set.
Sprinkle grated sugar on top.
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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Butter + eggtop 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
- Fresh butter
- Adds richness and fat, giving the filling a smooth, tender texture.
- Egg yolks
- Thicken the filling as they set, giving it a soft, custard-like structure.
- Egg whites
- Add lightness and help the filling set with a delicate structure.
- White sugar
- Sweetens the filling and helps it brown lightly on top.
The step that matters
Bake until set. Egg-based fillings set through gentle heat; underbaking leaves them runny, while overbaking makes them grainy and weeping. Watch for a slight wobble in the centre.
Swap the lemon
How well each one fits the dish's main ingredients (butter, egg, sugar):
- Vanillafits better
- Lemonthe original
- Raisinfits about as well
- Figfits about as well
Fit is the average pairing score against butter, egg, 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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