Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Lemon Tarts
Ingredients
Directions
Make the filling
Mix well and let come to a boil.
Beat the yolks and whites of the eggs separately.
Beat to a cream the butter, sugar, lemon rind, and yolks of eggs.
Add milk and lemon juice.
Put white of eggs in last.
Place the sugar, juice of lemons, yolks of eggs, and butter in kettle and stir until it boils up thick.
Mix thoroughly the juice and grated rind of the lemon, sugar, cornstarch, and yolks of eggs.
Pour over them the boiling water, and cook until it thickens.
Bake and top
Bake short pie crust in gem pans, and fill with custard.
Bake in raw crust.
Put in pastry shell that has been baked.
Have crust baked, and fill with mixture.
Bake in lower crust.
Spread with stiff whites of eggs with 2 tablespoons of sugar; place in oven to brown.
Make a meringue of the whites of eggs and a little sugar.
Beat the whites of the eggs; add 1 teaspoon sugar for each white.
Put the whites, well beaten with 1 teaspoon sugar, on top of pie.
Spread on top of pie and brown.
Spread on top of pie; return to oven and brown slightly.
Put in oven and brown.
Nutrition, whole recipe (rough)
Counts 6 of 8 ingredients. The other 2 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 6 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Flour | 1 cup (125g) all-purpose | 455 |
| Milk | 1 cup (244ml) whole | 149 |
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Water | not in our table | 0 |
| Pie | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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 + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Milk + lemontop 15% of all pairsSmell alikemoderateCooked together19,053 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and butter barely smell alike, yet cooks put them together in 124,287 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
- Yolks thicken the filling and whites form the meringue topping.
- Sugar
- Sweetens the filling and helps the meringue whites stay stiff and glossy.
- Lemon juice
- Adds the sharp acidity that defines the lemon filling.
- Butter
- Adds richness and smoothness to the filling.
- Cornstarch
- Thickens the filling as it cooks in boiling water.
The step that matters
Cooking the filling until it thickens. Egg yolks and cornstarch only thicken fully when the mixture reaches a boil while stirred. Undercooked filling stays runny and can weep once cut, so keep stirring and cook until it is clearly thick.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, milk, flour, butter, egg):
- Vanillafits better
- Raisinfits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against sugar, milk, flour, butter, egg. 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 pie 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
Lemon Custard64 recipes