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Rusks

A twice-baked biscuit made from a yeast dough with milk, sugar, butter, and cinnamon.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 11 ingredients
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Why it works: Milk and butter 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

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Make the sponge

  1. Set a sponge overnight with milk, sugar, yeast, and enough flour for a stiff batter.

  2. Beat the sponge well.

  3. Cover the sponge and set it in a warm place.

Make the dough

  1. In the morning, add sugar, butter and lard (or Crisco), eggs, baking soda, and flour for a soft dough.

  2. Knead the dough well for at least 5 minutes.

  3. Cover the dough and let it rise.

  4. When the dough is light, turn it for 3 minutes.

Shape and bake

  1. Roll out the dough.

  2. Cut the dough with a small cutter.

  3. Place the cut pieces on a baking sheet about 2 inches apart.

  4. Cover the pieces with cheesecloth.

  5. Set the pieces aside.

  6. When the dough is light, brush the pieces with beaten egg white.

  7. Sprinkle the pieces with cinnamon.

  8. Bake at 400°F (200°C) for 20 minutes.

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

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

  2. Flour + cinnamontop 9% of all pairs
    Smell alikemoderate
    Cooked together17,341 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  3. Milk + cinnamontop 10% of all pairs
    Smell alikemoderate
    Cooked together12,655 recipes

    Shared aroma: cuminaldehyde (Spicy, cumin).

  4. Sugar + cinnamontop 10% of all pairs
    Smell alikelow
    Cooked together30,779 recipes

    Shared aroma: guaiacol (smoky, sweet).

  5. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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 stiff sponge and soft dough that give the rusks their structure.
Yeast
Ferments the sponge so the dough rises and becomes light.
Milk
Adds moisture and richness to the sponge and dough, softening the crumb.
Butter and lard
Add fat that tenderizes the crumb and gives a richer texture.
Eggs
Add structure and richness to the dough, helping it bind and set.
Baking soda
Reacts to lift and lighten the dough as it bakes.

The step that matters

Letting the dough get light before shaping. Yeast needs time in a warm place to raise the dough. Shaping or baking before it is light gives dense rusks, because the gas bubbles that create lift have not yet formed.

“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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