Why it works: Milk and sugar are a kitchen classic. They rank in the top 18% of all ingredient pairs, and cooks put them together in 77,875 recipes. Both carry 2-nonenal, which smells fatty, green. The science ↓
To Make Butter
Ingredients
Directions
Prepare
Ensure all vessels are clean and dry, exposing them to sunlight.
Scald a wooden tub and ladle.
Fill the tub with cold water.
Churn and wash
Churn the milk until butter forms, being careful not to churn too fast or too slow.
Remove the butter from the buttermilk with the ladle.
Press the butter against the churn's side.
Place the butter in cold water.
Work out the remaining milk.
Change the water until clear.
Season and store
Add 1 teaspoon of fine salt and 1 teaspoon of fine white sugar to each pound of butter, mixing well.
Pack the butter into wooden or stone containers.
Cover with muslin to keep it fresh.
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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Milk + sugartop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Milk and sugar barely smell alike, yet cooks put them together in 77,875 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
- Milk
- Its fat globules gather into solid butter when churned, while the liquid buttermilk separates out.
The step that matters
Churn at a steady pace. Churning too fast or too slow changes how the fat globules clump together, so the butter may fail to form cleanly or may turn greasy. Steady agitation lets the fat gather into firm grains.
“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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