Why it works: Vanilla and sugar are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 35,032 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Hard Sauce
Ingredients
Directions
Cream the butter until very light.
Gradually add the powdered sugar while mixing.
Add the vanilla extract and mix well.
In a separate bowl, beat the egg whites until stiff and dry, then fold them into the mixture.
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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Vanilla + sugartop 8% of all pairsSmell alikelowCooked together35,032 recipes
Shared aroma: beta-damascenone (apple, rose).
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Butter + vanillatop 14% of all pairsSmell alikemoderateCooked together20,050 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + eggtop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Butter + sugartop 17% of all pairsSmell alikemoderateCooked together98,233 recipes
Shared aroma: guaiacol (smoky, sweet).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Vanilla and sugar barely smell alike, yet cooks put them together in 35,032 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
- Butter
- Creamed until very light, it traps air and gives the sauce a rich, smooth body.
- Powdered sugar
- Sweetens the sauce and, being fine, dissolves smoothly into the butter for a smooth texture.
- Egg whites
- Whipped until stiff, they trap air that lightens the sauce's texture.
- Vanilla extract
- Adds aroma that rounds out the sweetness of the butter and sugar.
The step that matters
Folding in the beaten egg whites. Whipped egg whites hold air in a foam that lightens the sauce. Folding gently with a spatula keeps that air in; vigorous stirring deflates the foam and makes the sauce dense.
“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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