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Dessert

Rusks, Another Way of Making

A baked and then dried biscuit made from butter, sugar, flour, eggs, milk, yeast, and salt.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Rusks, Another Way of Making

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Make the dough

  1. Mix the yeast with the sugar and a small cup of warm milk.

  2. Pour the mixture into a deep basin with the flour in the center.

  3. Let the mixture rise in a warm place for 1 hour.

  4. Add the remaining milk, eggs, and salt to the flour.

  5. Beat the mixture well with a wooden spoon.

  6. Let the mixture rise again in a buttered tin for 1 hour.

Bake and dry

  1. Bake in a moderate oven at 350°F (175°C).

  2. Once cooled, cut into thin slices.

  3. Dry the slices in a hot oven at 400°F (200°C) with powdered sugar sprinkled over.

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 + milktop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

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

  2. Butter + flourtop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Flour + milktop 14% of all pairs
    Smell alikelow
    Cooked together78,219 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  5. Flour + eggtop 15% of all pairs
    Smell alikelow
    Cooked together106,462 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Flour
Forms the structure that holds the dough together and sets during baking.
Butter
Adds fat for tenderness and richness in the crumb.
Eggs
Add structure, richness, and moisture to the dough.
Yeast
Ferments the dough so it rises before baking.
Milk
Provides moisture that hydrates the flour and helps form the dough.
Sugar
Feeds the yeast and adds sweetness and browning.

The step that matters

Dry the slices in a hot oven. Rusks are baked once and then dried so they become crisp and keep well. Drying at high heat with the slices spread out removes moisture, so they crisp rather than stay soft in the center.

“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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