Why it works: Rum and nutmeg work together. They rank in the top 11% of all ingredient pairs, and cooks put them together in 646 recipes. Both carry alpha-pinene, which smells pine, turpentine. The science ↓
Plain Hard Sauce
Ingredients
Directions
In a bowl, combine butter and sugar until smooth.
Add rum or lemon juice and nutmeg, mixing well.
Transfer the mixture to a container and refrigerate until hardened.
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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Rum + nutmegtop 11% of all pairsSmell alikemoderateCooked together646 recipes
Shared aroma: alpha-pinene (pine, turpentine).
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Butter + rumtop 13% of all pairsSmell alikemoderateCooked together1,007 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Sugar + rumtop 14% of all pairsSmell alikelowCooked together2,908 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + nutmegtop 16% of all pairsSmell alikemoderateCooked together24,377 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Butter + sugartop 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 fat that gives richness and creamy body, and firms as it chills so the sauce sets.
- Sugar
- Adds sweetness and, creamed with butter, helps produce a smooth texture.
- Rum or lemon juice
- Adds a sharp, aromatic flavor that balances the sweetness and fat.
The step that matters
Refrigerate until hardened. Butter is solid when cold and softens at room temperature, so the sauce only holds its shape after it has chilled long enough. Serving it too soon gives a soft, runny texture.
Swap the nutmeg
How well each one fits the dish's main ingredients (butter, sugar, rum):
- Cinnamonfits better
- Nutmegthe original
- Gingerfits less well
- Allspicefits less well
Fit is the average pairing score against butter, sugar, rum. Candidates are from the same food group and used in at least 100 recipes.
“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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