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Vegetable Pie

A pie made with boiled potatoes and onions, layered with sage and tapioca, topped with crust.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Potato and onion are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Vegetable Pie

Ingredients

Directions

Prepare

  1. Boil the potatoes and onions for a short time until tender.

  2. Slice the potatoes and onions and layer them in a deep, buttered pie dish.

Assemble and bake

  1. Add a little sage and well-steeped tapioca to each layer.

  2. Season with coarse sea salt to taste.

  3. Cover with a pie crust and bake until golden.

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 + oniontop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

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

  2. Potato + sagetop 11% of all pairs
    Smell alikemoderate
    Cooked together386 recipes

    Shared aroma: alpha-pinene (pine, turpentine).

  3. Onion + sagetop 12% of all pairs
    Smell alikemoderate
    Cooked together3,628 recipes

    Shared aroma: coumarin (sweet, hay).

  4. Potato + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together6,456 recipes

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

  5. Onion + buttertop 15% of all pairs
    Smell alikemoderate
    Cooked together42,912 recipes

    Shared aroma: decanal (soap, orange peel).

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 filling, becoming soft and tender as they cook.
Onions
Add savory sweetness and aroma as they soften and mellow during cooking.
Well-steeped tapioca
Thickens the juices that collect between the layers as the pie bakes.

The step that matters

Boil the potatoes and onions for a short time until tender. Partly cooking the vegetables before baking helps them become tender within the baking time. Slicing after boiling and layering them in the dish keeps the pie from being undercooked in the middle.

Swap the sage

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

  1. Garlicfits better
  2. Thymefits better
  3. Parsleyfits better
  4. Sagethe original

Fit is the average pairing score against potato, onion, 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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