Why it works: Wine and brandy are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 2,427 recipes. Both carry gamma-nonanolactone, which smells coconut, sweet. The science ↓
Lemon Custard
Ingredients
Directions
Make the custard base
Beat the yolks of the eggs until they are white.
Add boiling water, grated lemon rinds, and sweetened lemon juice; stir over heat until thickened.
Add wine and brandy, bring to a boil, then pour into glasses.
Alternative method
Alternatively, combine lemon rinds and juice with warm water and sugar in a bowl.
Beat the egg whites to stiff peaks, then beat in the yolks.
Gradually mix in the other ingredients while beating.
Place the mixture in a pot of boiling water and stir until thick as custard.
Strain into a deep dish and cool on ice 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.
-
Wine + brandytop 9% of all pairsSmell alikemoderateCooked together2,427 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
-
Lemon + winetop 13% of all pairsSmell alikelowCooked together6,157 recipes
Shared aroma: decanal (soap, orange peel).
-
Egg + brandytop 17% of all pairsSmell alikemoderateCooked together7,340 recipes
Shared aroma: acetoin (butter, cream).
-
Lemon + sugartop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Egg + lemontop 19% of all pairsSmell alikelowCooked together44,316 recipes
Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).
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
- Egg yolks
- Thicken the custard and add richness through their proteins setting as they heat.
- Lemon juice
- Adds sharp acidity that balances the sweetness of the custard.
- Lemon rinds
- Contribute aromatic oils that give the custard its lemon fragrance.
- Wine
- Adds liquid and a fuller, fruity flavour to the custard.
- Brandy
- Adds aroma and warmth to the finished custard.
The step that matters
Stirring the yolks over heat until thickened. Egg proteins set as they warm, so heating too fast or too long can curdle the yolks into grainy lumps. Stir constantly and keep the heat gentle so the custard thickens smoothly.
Swap the lemon
How well each one fits the dish's main ingredients (egg, wine, brandy, sugar):
- Vanillafits better
- Apricotfits better
- Applefits better
- Lemonthe original
Fit is the average pairing score against egg, wine, brandy, 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.
More lemon custard recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Lemon Cake228 recipes
Lemon Ice147 recipes
Lemon Sherbet103 recipes
Brandy Peaches68 recipes