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Dessert

Treacle Tart

A sweet tart with a filling of eggs, treacle, sugar, cornflour, and nutmeg baked in a crust.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Egg and nutmeg are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 24,744 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓

Treacle Tart

Ingredients

Directions

The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

  1. Preheat the oven to 400°F (200°C).

Make the filling

  1. In a bowl, combine the lightly beaten eggs, treacle, sugar, cornflour, and nutmeg.

  2. Set the mixture into a dish of hot water to thicken.

Bake

  1. Fill the prepared crust with the thickened mixture and bake until set.

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. Egg + nutmegtop 17% of all pairs
    Smell alikelow
    Cooked together24,744 recipes

    Shared aroma: acetic acid (sour, vinegar).

  2. Sugar + nutmegtop 20% of all pairs
    Smell alikelow
    Cooked together23,364 recipes

    Shared aroma: 1-penten-3-one (fish, pungent).

  3. Egg + sugartop 21% of all pairs
    Smell alikemoderate
    Cooked together122,807 recipes

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

Egg and nutmeg barely smell alike, yet cooks put them together in 24,744 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
Set the filling into a firm, sliceable custard as they coagulate with heat.
Treacle
Provides the dominant sweetness, dark color, and rich molasses flavor.
Sugar
Adds sweetness and helps balance the strong flavor of the treacle.
Cornflour
Thickens the liquid filling as it heats, helping it hold its shape.

The step that matters

Thicken the mixture gently in hot water. Eggs and cornflour set with gentle heat, and overheating can curdle the eggs or make the filling grainy. Bake only until the filling is set, since overbaking makes it rubbery and dry.

Swap the nutmeg

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

  1. Cinnamonfits better
  2. Nutmegthe original
  3. Gingerfits less well
  4. Capersfits less well

Fit is the average pairing score against egg, 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.

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