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Dessert

Toffee

A caramelized sugar confection made with cream, butter, brown sugar, and optional pistachios or ginger.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 8 ingredients
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Why it works: Vanilla and pistachio match in chemistry and in kitchens. They rank in the top 8% of all ingredient pairs, and cooks put them together in 407 recipes. Both carry alpha-pinene, which smells pine, turpentine. The science ↓

Toffee

Ingredients

Directions

Make the toffee

  1. In a saucepan, combine sugar, cream, and essence of vanilla.

  2. If desired, stir in blanched and shredded pistachios.

  3. For chocolate toffee, mix in 1 oz of best vanilla chocolate with a little cream, gradually adding more until you have used ½ cup.

  4. Add 6 oz of fresh butter and 12 oz of brown sugar to the mixture.

  5. Stir in 1 tablespoon of treacle and boil for 20 minutes, stirring constantly to prevent sticking.

  6. Add a little essence of vanilla, then pour onto a buttered tin to cool.

Set and cut

  1. Cut into bars once partially set.

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. Vanilla + pistachiotop 8% of all pairs
    Smell alikestrong
    Cooked together407 recipes

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

  2. Cream + buttertop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  3. Sugar + vanillatop 8% of all pairs
    Smell alikelow
    Cooked together35,032 recipes

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

  4. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  5. Pistachio + gingertop 12% of all pairs
    Smell alikemoderate
    Cooked together109 recipes

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

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 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

Sugar
Provides sweetness and, when boiled, the hard set that gives toffee its structure.
Cream
Adds richness and softness, giving the toffee a smoother, less brittle texture.
Fresh butter
Adds fat for a rich flavour and a tender, melting bite.
Brown sugar
Adds caramel notes and extra colour to the toffee.
Treacle
Adds depth, colour and a molasses-like flavour, and helps keep the toffee chewy.

The step that matters

Stirring while boiling. The mixture can scorch or stick to the base of the pan during the 20-minute boil. Constant stirring spreads the heat evenly and keeps sugar from burning, which would make the toffee bitter.

Swap the pistachio

The recipe marks pistachio as optional. How well each one fits the dish's main ingredients (sugar, cream, vanilla, butter, ginger):

  1. Almondfits better
  2. Chestnutfits about as well
  3. Cashew nutfits about as well
  4. Pistachiothe original

Fit is the average pairing score against sugar, cream, vanilla, butter, ginger. 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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