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Crab Lauders

A sweet potato pastry tart made with rich pastry and sweet potato filling.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Sweet potato and sugar are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 1,151 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Crab Lauders

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).

  2. Line small tart or muffin tins with rich pastry.

Fill and bake

  1. Mix the boiled and mashed sweet potato with butter, salt, and sugar.

  2. Fill the pastry-lined tins with the sweet potato mixture.

  3. Cover with pastry, crimp the edges, and perforate the top.

  4. Bake until golden brown.

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. Sweet potato + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together1,151 recipes

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

  2. Butter + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Sweet potato + buttertop 20% of all pairs
    Smell alikemoderate
    Cooked together1,491 recipes

    Shared aroma: 2,3-pentanedione (butter, sweet).

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

What each ingredient does

Sweet potato
Forms the bulk of the filling and gives it a soft, moist texture once mashed.
Butter
Adds fat for richness and a smooth, silky mouthfeel in the filling.
Sugar
Adds sweetness and helps the filling and pastry brown during baking.
Rich pastry
Forms the crisp, sturdy shell that holds the filling and browns in the oven.

The step that matters

Perforate the top before baking. Piercing the top pastry lets steam from the moist sweet potato filling escape. Without vents, steam can build pressure, lifting or splitting the crust and leaving a soggy or uneven filling.

Swap the sweet potato

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

  1. Sweet potatothe original
  2. Leekfits about as well
  3. Potatofits about as well
  4. Capsicumfits less well

Fit is the average pairing score against butter, 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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