Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓
Our Own Marmalade
Ingredients
Directions
Prepare the oranges
Boil the Seville oranges in 2 quarts of water for 1½ hours.
Pour away the water.
Add 2 quarts of boiling water to the oranges.
Boil again for 1 hour.
Cut the oranges as finely as possible.
Make the marmalade
For every pound of pulp, add 2 lbs of loaf sugar and ½ pint of the last boiling water.
Squeeze the juice from the sweet oranges and lemon until you have nearly 1 pint.
Remove the seeds from the juice.
Add 1 lb of sugar to the juice.
Combine the juice, water, and sugar in a preserving pan until the sugar melts.
Add the orange pulp.
Boil for about 25 minutes.
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.
-
Orange + lemontop 1% of all pairsSmell alikestrongCooked together10,634 recipes
Shared aroma: 3-hexenal (apple, fruity).
-
Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Orange + sugartop 20% of all pairsSmell alikelowCooked together19,212 recipes
Shared aroma: beta-damascenone (apple, rose).
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
- Seville oranges
- Their pectin and bitter peel help the marmalade set and give it its characteristic flavour.
- Loaf sugar
- Sweetens the marmalade and, as it concentrates, helps it set and preserves it.
- Sweet oranges
- Add juice and sweetness that balance the bitterness of the Seville oranges.
- Lemon
- Adds acidity and extra pectin, which help the marmalade set.
The step that matters
Boil for about 25 minutes. The mixture must reach a rolling boil so enough water evaporates and the sugar and pectin concentrate to a point where the marmalade sets. Boiling too briefly leaves it runny; boiling too long can darken and harden it.
“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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