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Sweet Potato Puff

A baked sweet potato and egg mixture that sets into a puff.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 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 Puff

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

  1. Preheat the oven to 350°F (175°C).

Make and bake

  1. In a bowl, mix the mashed sweet potato, eggs, milk, butter, and salt until well combined.

  2. Pour the mixture into a baking dish and bake until set and lightly browned.

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. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  4. Egg + milktop 18% of all pairs
    Smell alikemoderate
    Cooked together88,785 recipes

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

  5. 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

Mashed sweet potato
Forms the bulk of the dish and gives it body and sweetness.
Eggs
Set during baking to give the puff its structure.
Milk
Adds moisture and softness to the mixture.
Butter
Adds fat for richness and a smoother texture.

The step that matters

Baking until set and lightly browned. Eggs set as they heat, so underbaking leaves the centre loose and wet, while overbaking can make the puff dry and tough. Watch for a firm centre and light browning.

Swap the sweet potato

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

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

Fit is the average pairing score against egg, milk, butter. 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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