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Dessert

Walnut Icing

A sweet walnut glaze made from maple sugar, butter or cream, and chopped walnuts.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 3 ingredients
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Why it works: Butter and walnut are a kitchen classic. They rank in the top 15% of all ingredient pairs, and cooks put them together in 6,832 recipes. Both carry eucalyptol, which smells eucalyptus, herbal. The science ↓

Walnut Icing

Ingredients

Directions

  1. Boil the maple sugar until it reaches a hair stage.

  2. Add the butter or cream to the boiled sugar.

  3. Stir in the chopped walnuts, mixing well.

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. Butter + walnuttop 15% of all pairs
    Smell alikemoderate
    Cooked together6,832 recipes

    Shared aroma: eucalyptol (eucalyptus, herbal).

  2. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

  3. Sugar + walnuttop 26% of all pairs
    Smell alikemoderate
    Cooked together7,147 recipes

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

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

What each ingredient does

Maple sugar
Provides the sweetness and, once boiled and cooled, the set body of the icing.
Butter or cream
Adds fat that softens the texture and makes the cooled icing smoother and richer.
Walnuts
Add crunch and a nutty flavour that contrasts with the sweet sugar.

The step that matters

Boiling the sugar to the hair stage. Sugar boiled too little stays soft and runny and will not set, while boiled too far it turns hard and grainy. The hair stage marks the concentration needed for a creamy, spreadable icing.

Swap the walnut

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

  1. Almondfits better
  2. Pecansfits better
  3. Filbertfits better
  4. Walnutthe original

Fit is the average pairing score against sugar, butter. 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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