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Dessert

Red Grape Ice

A chilled dessert made from red Tokay grapes, sugar, citrus, and whipped egg whites.

From an old cookbook · modernised transcription
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Why it works: Lemon and orange match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Red Grape Ice

Ingredients

Directions

Make the grape base

  1. Select about a fourth of the grapes to reserve for later.

  2. Combine the grapes, water, and sugar in a pot.

  3. Squeeze the juice from the lemon and orange into the mixture.

  4. Cook over medium heat until the sugar dissolves and the mixture is syrupy.

  5. Cool the mixture, then blend until smooth.

  6. Strain the mixture to remove solids.

Finish and freeze

  1. Whip the egg whites until stiff peaks form.

  2. Fold the whipped egg whites into the grape mixture.

  3. Freeze according to your ice cream maker's instructions.

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. Lemon + orangetop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Grape + orangetop 6% of all pairs
    Smell alikemoderate
    Cooked together1,771 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  3. Grape + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together2,412 recipes

    Shared aroma: 3-hexenal (apple, fruity).

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

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

  5. Lemon + eggtop 19% of all pairs
    Smell alikelow
    Cooked together44,316 recipes

    Shared aroma: (e,e)-2,4-decadienal (fatty, deep fried).

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

Egg whites
Whipped into foam, they lighten the texture and make the ice cream airy and smooth.
Sugar
Dissolves into the grape juice to sweeten it and softens the frozen texture.
Red tokay grapes
Provide the main fruit flavor and color of the ice cream base.
Lemon
Adds acidity that brightens the sweet grape flavor.

The step that matters

Fold the whipped egg whites into the grape mixture. Stiff egg whites trap air that gives lightness; deflating them by stirring vigorously or over-mixing loses that volume and makes the ice cream dense.

Swap the grape

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

  1. Vanillafits better
  2. Limefits better
  3. Blueberryfits better
  4. Grapethe original

Fit is the average pairing score against sugar, lemon, orange, egg. 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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