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Dessert

Swiss Toffee

A sweet confection made with Swiss milk, butter, golden syrup, moist sugar, and vanilla essence.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Swiss Toffee

Ingredients

Directions

  1. Rinse a saucepan with water and leave a spoonful in it.

  2. Add butter, syrup, and sugar; stir until melted.

  3. Add Swiss milk and boil for 20 minutes.

  4. Remove from heat and stir in the vanilla.

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. Milk + vanillatop 5% of all pairs
    Smell alikemoderate
    Cooked together19,187 recipes

    Shared aroma: ethyl caproate (fruity, apple peel).

  2. Syrup + sugartop 6% of all pairs
    Smell alikestrong
    Cooked together5,842 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

  3. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

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

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

  5. Syrup + vanillatop 12% of all pairs
    Smell alikelow
    Cooked together1,855 recipes

    Shared aroma: ethanol (alcoholic, ethereal).

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

Swiss milk
Adds milk solids and body, giving the toffee a creamy, chewy texture as it cooks.
Butter
Supplies fat for richness and a smooth, tender bite.
Golden syrup
Adds sweetness and moisture while helping keep the sugar from crystallising.
Moist sugar
Provides sweetness and molasses flavour, and sets the toffee's firmness as it cools.

The step that matters

Boiling the Swiss milk for 20 minutes. As water evaporates, the sugar and milk solids concentrate, which determines how firm the toffee sets. Too short leaves it soft; too long, or unstirred heat, can scorch it.

“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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