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 ↓
Opera Caramels
Ingredients
Directions
Cook the syrup
Combine three cups granulated sugar, one cup milk, butter the size of a walnut, one-quarter teaspoon cream of tartar, and a pinch of salt.
Boil until it forms a soft ball in cold water, stirring only until dissolved but not after it boils.
Cool and finish
Pour onto a platter previously dipped in cold water.
When cold, dig with a silver knife until it sugars.
Work in one teaspoonful flavoring, form into balls and decorate with nut meats.
Nutrition, whole recipe (rough)
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Milk | 1 cup (244ml) whole | 149 |
| Cream | 1 tbsp (15ml) heavy | 51 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Salt | 1 tsp (6g) | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
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. See the original page.
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).
-
Milk + creamtop 18% of all pairsSmell alikemoderateCooked together29,399 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Sugar + milktop 18% of all pairsSmell alikelowCooked together77,875 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and milk 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
- Granulated sugar
- Provides sweetness and the sugar structure that sets the candy.
- Milk
- Adds moisture and milk solids for a creamy, soft texture.
- Butter (in the method)
- Adds fat for richness and a tender bite.
- Cream of tartar
- An acid that helps prevent large sugar crystals, keeping the candy smooth.
The step that matters
Stirring only until dissolved, then not after it boils. Stirring a boiling sugar syrup can knock loose sugar crystals that spread through the batch and make the candy grainy. Cooking to the soft-ball stage sets the final firmness, so the temperature must be reached without disturbing the syrup.
“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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