Why it works: Sugar and butter are a kitchen classic. They rank in the top 17% of all ingredient pairs, and cooks put them together in 98,233 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
To Preserve Butter
Ingredients
Directions
Prepare the salt mixture
Mix the salt, sugar, and saltpetre together thoroughly.
Salt the butter
For 14 pounds of butter, add 1 pound of the salt mixture and work it in well.
Once the butter is cold and firm, transfer it to glazed earthen vessels that hold 14 pounds each.
Preserve for winter
To preserve for winter, add an additional ounce of the mixture for every pound of butter and cover the top with enough salt to create a brine.
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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Sugar + buttertop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Butter
- Provides the fat that carries the salted, preserved texture and flavour of the final product.
- Common salt
- Draws out moisture and inhibits microbial growth, which helps the butter keep.
- Saltpetre
- Acts as a curing agent that helps preserve the butter and slows spoilage.
- Loaf sugar
- Adds sweetness that softens the sharpness of the salt.
The step that matters
Working the salt mixture into the butter. Salt must be evenly distributed. Unmixed pockets leave some areas under-salted and vulnerable to spoilage, while others become overly salty. Salt also draws out water and inhibits microbes, so even coverage is what keeps the whole batch preserved.
“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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