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Sweet Potatoes Baked in Syrup

Sweet potatoes baked with a sugar‑water syrup and butter.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 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 ↓

Sweet Potatoes Baked in Syrup

Oven, in the book's wordsA very hot oven

Ingredients

Directions

The book says “a very hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the potatoes

  1. Boil the sweet potatoes until tender, then let them cool.

  2. Cut the cooled sweet potatoes into thick slices.

  3. Place the slices in a buttered baking dish.

  4. Add small bits of butter on top of the slices.

Make the syrup

  1. In a saucepan, combine sugar and water, and boil down slightly to make a syrup.

Bake and serve

  1. Pour the syrup over the sweet potatoes.

  2. Baste the sweet potatoes with the syrup while baking.

  3. Bake in a very hot oven at 400°F (200°C) until the top is 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. Sweet potato + sugartop 17% of all pairs
    Smell alikemoderate
    Cooked together1,151 recipes

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

  2. Sugar + buttertop 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 potatoes
Provide the starchy, tender body of the dish that softens during cooking.
Sugar
Sweetens the syrup and helps the surface caramelize and brown in the oven.
Butter
Adds richness and helps the top brown while keeping the slices moist.

The step that matters

Boil the syrup down slightly. Sugar dissolved in water and boiled concentrates into a thicker syrup that clings to the potatoes and caramelizes when baked. Too little boiling leaves it thin and watery, so it soaks in rather than glazing the surface.

Swap the sweet potato

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

  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 sugar, 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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