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Dessert

Sweet Potato Pie

A baked custard dessert made from mashed sweet potatoes, milk, butter, eggs, sugar, and spices.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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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 ↓

Sweet Potato Pie

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the filling

  1. Boil sweet potatoes until soft, then mash them.

  2. Strain out excess water from the mashed sweet potatoes.

Make and bake the pie

  1. In a bowl, combine the mashed sweet potatoes with milk, melted butter, beaten eggs, sugar, and spice.

  2. Mix well until smooth and pour into a pie crust.

  3. Bake in a moderate oven at 350°F (175°C) 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. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  2. Sweet potato + milktop 15% of all pairs
    Smell alikemoderate
    Cooked together596 recipes

    Shared aroma: 4-heptenal (creamy, biscuit).

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

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

  4. Butter + eggtop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

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

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Sweet potatoes
Provide the bulk and body of the filling, becoming smooth and thick when mashed.
Eggs
Set when baked, giving the pie its firm, sliceable custard-like structure.
Milk
Adds liquid and richness, helping the filling bake into a creamy custard.
Butter
Adds fat and rich flavour to the filling.

The step that matters

Bake until set. Egg proteins set as the pie heats, so underbaking leaves the filling runny and overbaking can make it cracked and rubbery. Check that the centre has firmed before removing it from the oven.

Swap the sweet potato

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

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

Fit is the average pairing score against milk, butter, 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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