Why it works: Flour and biscuit match in chemistry and in kitchens. They rank in the top 9% of all ingredient pairs, and cooks put them together in 889 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Rusk Without Eggs
Ingredients
Directions
Combine the sponge, sugar, and butter in a bowl.
Mix in enough flour to form a biscuit dough.
Add spices to taste.
Let the mixture rise until it is light and fluffy.
Shape the dough into small biscuits.
Allow the biscuits to rise again before baking.
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.
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Flour + biscuittop 9% of all pairsSmell alikestrongCooked together889 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Butter + biscuittop 17% of all pairsSmell alikemoderateCooked together2,009 recipes
Shared aroma: nonanal (fat, citrus).
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Sugar + biscuittop 17% of all pairsSmell alikemoderateCooked together1,874 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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
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