Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Oriental Rhubarb Jam
Makes about four 6 ounce jarsIngredients
Directions
Make the jam
In a saucepan, combine rhubarb, sugar, five spice powder, ginger, hot pepper sauce and lemon juice; blend well.
Place over low heat, stirring constantly until sugar dissolves.
Bring to boil, skim off foam and cook over medium heat, stirring frequently, until mixture becomes transparent and thickens, about 15 to 20 minutes.
Jar and seal
Ladle into hot, sterilized jars; seal.
Makes about four 6 ounce jars.
Nutrition, whole recipe (rough)
Counts 4 of 6 ingredients. The other 2 aren't in our nutrition table and add nothing above, so the real totals are higher.
What these numbers assume: 4 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Sugar | 1 tbsp (12.5g) granulated | 49 |
| Lemon | juice of 1 lemon (48ml) | 12 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Ginger | 1 tsp grated fresh (2g) | 2 |
| Rhubarb | not in our table | 0 |
| Sauce | not in our table | 0 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
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.
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Ginger + lemontop 5% of all pairsSmell alikestrongCooked together5,154 recipes
Shared aroma: beta-phellandrene (minty, terpene).
-
Rhubarb + gingertop 7% of all pairsSmell alikemoderateCooked together241 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Rhubarb + lemontop 7% of all pairsSmell alikestrongCooked together546 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Pepper + gingertop 9% of all pairsSmell alikestrongCooked together6,800 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Provides the tart base and bulk of the jam.
- Granulated sugar
- Sweetens the jam and helps it thicken as it cooks down.
- Lemon juice
- Adds acidity that brightens flavour and supports setting.
- Candied ginger
- Adds sweet, spicy aroma and chewy pieces throughout the jam.
The step that matters
Cooking until the mixture thickens. Sugar and fruit pectin set as water evaporates during simmering. Stopping too early leaves the jam runny, while overcooking can make it stiff and sugary once cooled.
Swap the rhubarb
How well each one fits the dish's main ingredients (pepper, sauce, sugar, ginger, lemon):
- Cardamomfits better
- Cinnamonfits better
- Turmericfits better
- Rhubarbthe original
Fit is the average pairing score against pepper, sauce, sugar, ginger, lemon. 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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