Skip to main content
Dessert

Rusks

Rusks are baked and then dried hard biscuits made from flour, butter, yeast, eggs, milk, and optional sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
Jump to recipe ↓

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

Oven, in the book's wordsA very slow oven

Ingredients

Directions

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

Make the dough

  1. Work the butter into crumbs with the flour to form a paste.

  2. Mix in the yeast, eggs, and warm milk.

  3. Let the mixture rise until it has doubled in size.

  4. Knead the dough until smooth and shape into small loaves or thick cakes.

  5. Place on a floured baking sheet and let prove in a warm place for 10 to 20 minutes.

Bake and dry

  1. Bake in a 400°F (200°C) oven for about 15 minutes.

  2. While warm, divide the rusks and place them in a 300°F (150°C) oven to dry until crisp.

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

    Shared aroma: isobutyraldehyde (malty, green).

  3. Beer + milktop 13% of all pairs
    Smell alikemoderate
    Cooked together298 recipes

    Shared aroma: methyl 2-methylbutyrate (fruity, apple).

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

    Shared aroma: isobutyraldehyde (malty, green).

  5. Flour + sugartop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

Flour and butter 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 of the dough, binding it into a paste that holds its shape.
Butter
Adds fat that tenderises the crumb and gives the rusks richness.
Beer yeast
Ferments the dough so it rises and becomes light before baking.
Eggs
Add structure and richness, helping the dough set and bind.
Warm milk
Provides moisture to hydrate the flour and activate the yeast.

The step that matters

Drying the rusks in the low oven. Rusks must be dried slowly at a low temperature until fully crisp. Drying removes moisture so they keep their crunch and store well; leaving them moist makes them soft and prone to spoiling.

“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.

More rusks recipes

Sweet 8Cream Cake and Sweet 4French 4Lebanon 4Old Fashioned 3 See all 38 →

You might also like

White CakeWhite Cake431 recipesPound CakePound Cake373 recipesOrange Bundt CakeOrange Bundt Cake349 recipesSpice CakeSpice Cake344 recipes