Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Lemon Custard
Ingredients
Directions
Prepare
Juice the lemons into a bowl.
Heat the cream until it is scalding hot.
Combine and set
Pour the hot cream from a teapot over the lemon juice in the bowl.
Let the mixture sit for 10 to 12 hours before serving.
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.
-
Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Lemon + creamtop 30% of all pairsSmell alikelowCooked together15,640 recipes
Shared aroma: acetic acid (sour, vinegar).
Lemon and sugar 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
- Lemon juice
- Provides the tart acidity that defines the flavour of the dish.
- Cream
- Provides fat and richness, giving the custard a smooth, creamy body.
- Fine sugar
- Adds sweetness to balance the sourness of the lemon juice.
The step that matters
Pour the hot cream over the lemon juice. Hot cream meeting acidic lemon juice can curdle its proteins, so the pour matters for a smooth result.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, cream):
- Vanillafits better
- Strawberryfits better
- Raspberryfits better
- Lemonthe original
Fit is the average pairing score against sugar, cream. 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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