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Blackberry Frappe

A chilled beverage made with lemon juice, blackberry syrup, raspberry syrup, and shaved ice.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 4 ingredients
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Why it works: Blackberry and raspberry match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 278 recipes. Both carry furaneol, which smells caramel, sweet. The science ↓

Blackberry Frappe

Ingredients

Directions

  1. In a 14-ounce glass, fill two-thirds full with shaved ice.

  2. Add the lemon juice, blackberry syrup, and raspberry syrup.

  3. Shake well; do not strain.

  4. Garnish with fruit and serve with real straws.

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. Blackberry + raspberrytop 1% of all pairs
    Smell alikestrong
    Cooked together278 recipes

    Shared aroma: furaneol (caramel, sweet).

  2. Lemon + blackberrytop 7% of all pairs
    Smell alikemoderate
    Cooked together291 recipes

    Shared aroma: decanal (soap, orange peel).

  3. Lemon + raspberrytop 8% of all pairs
    Smell alikemoderate
    Cooked together1,109 recipes

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

  4. Lemon + syruptop 20% of all pairs
    Smell alikelow
    Cooked together2,235 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  5. Syrup + raspberrytop 20% of all pairs
    Smell alikelow
    Cooked together377 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Lemon juice
Adds acidity that brightens the sweet syrups and balances the flavor.
Blackberry syrup
Provides sweetness and the main blackberry flavor.
Raspberry syrup
Adds sweetness and a second berry flavor that rounds out the blackberry.
Shaved ice
Chills the drink and, as it melts, dilutes it slightly while giving a light, slushy texture.

The step that matters

Shake well; do not strain. Shaking chills the liquid quickly and mixes the syrups and juice evenly with the ice. Straining would remove the ice, leaving a thinner, less chilled drink with a different texture.

Swap the lemon

How well each one fits the dish's main ingredients (blackberry, syrup, raspberry):

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

Fit is the average pairing score against blackberry, syrup, raspberry. 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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