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Dessert

Opera Caramels

Opera Caramels are candied sweets made with opera cream and various chopped nuts and fruit.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 10 ingredients
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Why it works: Pistachio and almond match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 693 recipes. Both carry alpha-pinene, which smells pine, turpentine. The science ↓

Opera Caramels

Ingredients

Directions

Prepare the fillings

  1. Chop the cherries and set aside.

  2. Chop the pecans, English walnuts, and pineapple, and set aside.

  3. Chop the pistachio nuts and set aside.

  4. Chop the almonds and set aside.

Assemble the caramels

  1. Prepare eight five-pound candy box covers by lining the bottoms with wax paper.

  2. Weigh 2½-pound pieces of opera cream and mix in the prepared nuts or fruit.

  3. Place the mixture in the box covers until all five kinds are used.

  4. Fill one box with plain opera cream flavored with vanilla and colored pink, and another with chocolate‑flavored cream.

Set and mark

  1. Let the boxes stand for a few hours, then turn them upside down and remove the wax paper.

  2. Use a caramel cutter to mark the caramels without cutting them into pieces.

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. Pistachio + almondtop 1% of all pairs
    Smell alikestrong
    Cooked together693 recipes

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

  2. Walnut + pistachiotop 1% of all pairs
    Smell alikestrong
    Cooked together195 recipes

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

  3. Pistachio + nutstop 1% of all pairs
    Smell alikestrong
    Cooked together425 recipes

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

  4. Pineapple + vanillatop 2% of all pairs
    Smell alikestrong
    Cooked together911 recipes

    Shared aroma: ethyl isobutyrate (fruity, ethereal).

  5. Walnut + almondtop 2% of all pairs
    Smell alikestrong
    Cooked together993 recipes

    Shared aroma: 2,4-decadienal (seaweed).

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

What each ingredient does

Opera cream
Forms the soft caramel base that holds the nuts and fruit together.
Pecans
Add crunch and a rich, buttery flavor to the caramel.
English walnuts
Add crunch and a slightly bitter, earthy note against the sweet base.
Pineapple
Adds moisture and bright, tangy sweetness to the filling.
Cherries
Add moisture, fruity sweetness and color to the filling.

The step that matters

Use a caramel cutter to mark the caramels without cutting them into pieces. Marking scores the surface so the set caramel breaks cleanly later. Cutting all the way through a firm, sticky candy can crack or drag the fillings out of shape.

Swap the pineapple

How well each one fits the dish's main ingredients (pecans, walnut, pistachio, nuts, almond, cream, vanilla):

  1. Coconutfits better
  2. Figfits better
  3. Cherryfits better
  4. Pineapplethe original

Fit is the average pairing score against pecans, walnut, pistachio, nuts, almond, cream, vanilla. 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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