Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Plain Cream or Fondant
Ingredients
Directions
Combine sugar, boiling water, and cream of tartar in a boiler.
Stir until dissolved, but do not stir while boiling.
Boil until three drops fall slowly and a thread forms from the third drop.
Watch for bubbles breaking slowly as it boils.
Skim the sugar and the sides of the kettle with a wet cloth on a fork as scum arises.
When it threads, pour into a flat dish.
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 + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Granulated sugar
- Forms the crystalline base that sets into the fondant's smooth texture as it cools.
- Cream of tartar
- Acidifies the syrup to help prevent unwanted sugar crystallisation.
The step that matters
Boil until a thread forms from the third drop. Sugar syrup must reach the right concentration before cooling. Too little boiling leaves the fondant soft and runny; too much makes it hard. Judging by the thread test keeps the texture right.
“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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