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Lemon Curd Tart

A tart with a biscuit crust and lemon curd filling topped with meringue.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Milk and coconut are a kitchen classic. They rank in the top 10% of all ingredient pairs, and cooks put them together in 2,648 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Lemon Curd Tart

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Make the filling

  1. Soak the biscuit crumbs in milk for 30 minutes.

  2. Cream together icing sugar and coconut butter or olive oil.

  3. Whip in the beaten egg white and the egg yolks.

  4. Add the lemon juice and grated rind, then the soaked biscuit crumbs.

Bake and top

  1. Pour the mixture into a crust-lined dish and bake at 350°F (175°C) until golden brown.

  2. Make a meringue by beating the reserved egg whites with icing sugar.

  3. Spread the meringue over the tart and return to the oven until slightly browned.

  4. Serve cold.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Milk + coconuttop 10% of all pairs
    Smell alikemoderate
    Cooked together2,648 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  2. Biscuit + coconuttop 10% of all pairs
    Smell alikestrong
    Cooked together31 recipes

    Shared aroma: nonanal (fat, citrus).

  3. Biscuit + lemontop 12% of all pairs
    Smell alikestrong
    Cooked together697 recipes

    Shared aroma: nonanal (fat, citrus).

  4. Coconut + lemontop 13% of all pairs
    Smell alikemoderate
    Cooked together1,233 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Milk + lemontop 15% of all pairs
    Smell alikemoderate
    Cooked together19,053 recipes

    Shared aroma: 2-nonenal (fatty, green).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Biscuit crumbs
Soaked in milk, they add body and help bind the filling.
Egg yolks
Thicken and enrich the filling as they set, giving the curd its smooth richness.
Lemon juice
Provides acidity that gives the filling its bright, tart flavour.
Icing sugar
Sweetens the filling and dissolves smoothly into the mixture.
Egg white
Beaten into the meringue topping, where it builds structure and browns in the oven.

The step that matters

Return the meringue to the oven until slightly browned. Meringue can weep or turn tough if overbaked, while underbaking leaves it soft. Watching for a light golden colour keeps the topping stable and tender on the cooled tart.

Swap the coconut

How well each one fits the dish's main ingredients (biscuit, milk, sugar, egg, lemon):

  1. Vanillafits better
  2. Blueberryfits better
  3. Orangefits about as well
  4. Coconutthe original

Fit is the average pairing score against biscuit, milk, sugar, egg, lemon. 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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