Why it works: Sugar and raisin are a kitchen classic. They rank in the top 13% of all ingredient pairs, and cooks put them together in 12,481 recipes. Both carry beta-damascenone, which smells apple, rose. The science ↓
Citron Preserves
Ingredients
Directions
Prepare the citron
Peel and cut the citron into pieces an inch square.
Boil in weak alum water until soft.
Drain off the water.
Make the preserve
Add one pound of sugar to each pound of citron.
To every five pounds of the preserve add one pound of raisins and one lemon sliced.
Dissolve sugar. When hot add the fruit.
Simmer slowly for one hour.
Optionally leave out raisins, if preferred.
Nutrition, whole recipe (rough)
What these numbers assume: 3 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Grape | 1/2 cup (76g) | 62 |
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Lemon | juice of 1 lemon (48ml) | 12 |
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.
-
Sugar + raisintop 13% of all pairsSmell alikemoderateCooked together12,481 recipes
Shared aroma: beta-damascenone (apple, rose).
-
Raisin + lemontop 14% of all pairsSmell alikemoderateCooked together3,742 recipes
Shared aroma: decanal (soap, orange peel).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 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
- Citron
- Forms the main body of the preserve and becomes tender when boiled.
- Sugar
- Sweetens the preserve and helps it set into a thick, spreadable texture.
- Raisins
- Add chewy texture and concentrated sweetness to the finished preserve.
- Lemon
- Adds acidity and bright flavour that balances the sugar.
The step that matters
Simmer slowly for one hour. Sugar must dissolve fully before the fruit goes in, and a gentle simmer lets the sugar penetrate the citron and thicken the syrup without scorching. Too fast a boil can burn the sugar and toughen the fruit.
Swap the lemon
How well each one fits the dish's main ingredients (sugar, raisin):
- Vanillafits better
- Figfits better
- Datesfits about as well
- Lemonthe original
Fit is the average pairing score against sugar, raisin. 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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