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Snow Rock Candy

A hard candy made by boiling sugar to the crack stage, flavored with vinegar and lemon or peppermint.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Sugar and vinegar are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 20,806 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓

Snow Rock Candy

Ingredients

Directions

Make the syrup

  1. Dissolve the sugar slowly in a saucepan.

  2. Boil it until it reaches the crack stage.

  3. Add the vinegar and flavoring.

  4. Pour into a well-greased shallow tin.

Pull and shape

  1. When cool enough to handle, pull up one side. Fold it over. Place it on a candy hook. Pull until it becomes white.

  2. Cut into strips about six inches long and two inches wide.

  3. Roll each piece lengthwise on a board.

  4. When cold, wrap in paraffin paper.

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. Sugar + vinegartop 15% of all pairs
    Smell alikemoderate
    Cooked together20,806 recipes

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

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

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

  3. Vinegar + lemontop 20% of all pairs
    Smell alikemoderate
    Cooked together7,334 recipes

    Shared aroma: acetic acid (sour, vinegar).

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

Loaf sugar
Forms the crystalline candy structure as the syrup is boiled and then pulled.
Vinegar
Adds a little acidity that helps keep the sugar from recrystallising into large, coarse crystals.

The step that matters

Pull until it becomes white. Pulling incorporates air and makes the sugar crystals form many tiny grains, which turns the candy white and opaque. Pulling too early, while the candy is still too hot or too cool, changes how it aerates and sets.

Swap the lemon

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

  1. Vanillafits better
  2. Strawberryfits better
  3. Pineapplefits better
  4. Lemonthe original

Fit is the average pairing score against sugar, vinegar. 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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