Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓
Custard 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 the shells
Preheat the oven to 400°F (200°C).
Roll out the puff paste very thin and line patty pans with it.
Bake the lined pans until golden brown.
Make and fill
In a saucepan, combine eggs, milk, cornstarch, sugar, and vanilla. Cook until thickened.
Fill the baked pastry shells with the custard mixture.
Top and brown
Top with meringue and brown in the oven.
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.
-
Milk + vanillatop 5% of all pairsSmell alikemoderateCooked together19,187 recipes
Shared aroma: ethyl caproate (fruity, apple peel).
-
Sugar + vanillatop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Egg + sugartop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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
- Thicken the custard as they set during cooking, giving it body and a smooth, sliceable texture.
- Milk
- Forms the liquid base of the custard and adds richness and softness to the filling.
- Cornstarch
- Thickens the custard by swelling in heat, giving it a stable, spoonable consistency.
- Sugar
- Sweetens the custard and helps balance the richness of the eggs and milk.
- Best puff paste
- Forms the flaky, buttery shell that holds the custard and bakes to a golden crust.
The step that matters
Cook the custard until thickened. Cornstarch must reach a simmer to swell and thicken fully, and eggs must be heated enough to set. Undercooked custard stays runny and can fail to hold its shape in the shell.
“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.
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.
Vanilla Ice Cream108 recipes
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes