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Dessert

Potato Jelly

A jelly made by grating potatoes, extracting starch, and cooking it with water, sugar, and lemon or nutmeg.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Potato and lemon are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 2,230 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓

Potato Jelly

Ingredients

Directions

Prepare the farina

  1. Grate white potatoes into cold water and stir well.

  2. Strain the mixture through a fine sieve.

  3. Let it stand for a couple of hours until the farina settles at the bottom.

  4. Pour off the water and set the vessel on its side to let the farina dry completely.

Make the jelly

  1. Take 1 teaspoon of the farina and mix it smoothly with a little cold water.

  2. Pour boiling water over the mixture to create a thick jelly.

  3. Boil for 2-3 minutes, sweeten to taste, and flavor with lemon or nutmeg.

  4. Serve cold.

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 + lemontop 12% of all pairs
    Smell alikemoderate
    Cooked together2,230 recipes

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

  2. Sugar + lemontop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

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

  3. Potato + sugartop 30% of all pairs
    Smell alikelow
    Cooked together3,032 recipes

    Shared aroma: beta-damascenone (apple, rose).

Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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

White potatoes
Their starch, released as farina, becomes the thickening base of the jelly.
Boiling water
Heat swells and gelatinizes the potato starch, turning the mixture thick.
Sugar
Adds sweetness to balance the mild, starchy flavor of the jelly.

The step that matters

Let the farina dry completely. Residual water left in the farina dilutes the starch, so the jelly may fail to thicken properly when boiling water is added.

Swap the potato

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

  1. Arrowrootfits better
  2. Sweet potatofits better
  3. Kalefits better
  4. Potatothe original

Fit is the average pairing score against sugar, lemon. 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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