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 ↓
Orange Marmalade
Ingredients
Directions
Prepare the fruit
Wash the oranges and cut them in half crosswise.
Squeeze out the juice and seeds, then remove the white, pithy part of the pulp from the skins.
Put the skins and pulp through a meat chopper.
Place the mixture in a saucepan with water and boil, changing the water three times.
On the last change, add the orange juice to the skins.
Make the marmalade
Measure the mixture and add an equal amount of sugar.
Boil until it becomes thick and glassy, which may take 2 hours or longer.
If using sweet oranges, add the juice of 1 lemon for every 4 oranges.
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).
-
Lemon + sugartop 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).
Lemon and sugar 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
- Oranges
- Provide the peel, pulp and juice that form the marmalade's body and bitter-sweet flavour.
- Sugar
- Sweetens the marmalade and, as it concentrates, helps it set into a thick, glassy texture.
- Lemon
- Adds acidity to balance the sweetness of sweet oranges and supports setting.
The step that matters
Boil until thick and glassy. Marmalade sets as sugar and pectin concentrate in the boiling mixture. Stopping too early leaves it runny, while overcooking can make it stiff and dark, so judge by the glassy texture rather than time alone.
“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.
More orange marmalade recipes
You might also like
Orange Bundt Cake349 recipes
Lemon Cake228 recipes
Lemon Ice147 recipes
Orange Cream Rice Pudding121 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.