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Kentucky Potatoes

A baked casserole of sliced potatoes seasoned with salt, pepper, milk, and flour.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Potato and pepper are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 8,305 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Kentucky Potatoes

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

  1. Pare and thinly slice the potatoes.

Assemble and bake

  1. Layer the slices in a dish, sprinkling salt and pepper between each layer.

  2. Cover with milk thickened with 1 teaspoon of flour.

  3. Bake in a slow oven at 300°F (150°C) until cooked through.

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. Potato + peppertop 9% of all pairs
    Smell alikemoderate
    Cooked together8,305 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Potato + milktop 9% of all pairs
    Smell alikemoderate
    Cooked together3,611 recipes

    Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).

  3. Milk + flourtop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Potato + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together5,355 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  5. Pepper + flourtop 19% of all pairs
    Smell alikemoderate
    Cooked together50,459 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Milk and flour barely smell alike, yet cooks put them together in 78,219 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

Potatoes
Form the bulk of the casserole and cook down until tender in the baked dish.
Milk
Provides the liquid that cooks the potatoes and forms the creamy sauce.
Flour
Thickens the milk so the sauce clings to the layers instead of running off.

The step that matters

Baking until cooked through. Sliced raw potatoes must be fully tender in the middle, and the milk must thicken without scorching. Low, steady oven heat cooks the potato interior evenly while the milk sets gently, so a higher temperature risks a browned surface over raw centres.

Swap the potato

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

  1. Capsicumfits better
  2. Arrowrootfits about as well
  3. Potatothe original
  4. Parsnipfits about as well

Fit is the average pairing score against pepper, milk, flour. 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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