Making Seville Orange Marmalade
Marmalade relies on the balance between the fruit's natural pectin, sugar, and water. You boil the rinds until tender, combine with the juice and sugar, and cook rapidly until the liquid reaches the setting point—the moment a cold spoonful wrinkles when pushed with your finger.
Patience is a required ingredient.
Soaking the fruit overnight is essential to soften the thick rinds and extract maximum pectin. Use a heavy-bottomed pot to prevent scorching during the final, high-heat boil.
- large stainless steel pot
- sharp chef's knife
- muslin bag or cheesecloth
- candy thermometer (optional)
- sterilized glass jars
What goes in.
- 1 kgSeville oranges
- 2 Lwater
- 1.5 kggranulated sugar
The Cold Plate Test
Place a small saucer in the freezer before you begin. Drop a teaspoon of hot marmalade onto the frozen plate; if it forms a skin that wrinkles when you nudge it, the set is complete.
The method.
Prep the fruit
Wash the oranges. Cut them in half and squeeze out the juice, reserving it. Scrape the seeds and any white membrane into a muslin bag and tie it shut.
Slice the rinds
Slice the orange peels into thin, uniform strips. The thinner the slice, the more delicate the finished texture.
The overnight soak
Place the sliced peels, juice, and the tied muslin bag into your pot with the water. Cover and let sit for 24 hours to soften the pith.
Simmer
Bring the pot to a boil, then reduce to a simmer. Cook for 2 hours or until the peel is translucent and tender. Remove the muslin bag, squeezing it firmly against the side of the pot to release the pectin.
Add sugar and boil
Stir in the sugar over low heat until dissolved. Increase the heat to a rapid, rolling boil. Do not stir. Boil for 15 to 20 minutes until you achieve the setting point.
Jar
Remove from heat and let sit for 10 minutes to prevent the peels from floating. Ladle into warm, sterilized jars and seal immediately.
When it doesn't go to plan.
Always use a heavy pot; thin pots create hotspots that burn the sugar.
If you want clearer marmalade, skim the white foam from the surface just before pouring into jars.
Do not attempt to double the recipe; a large volume of sugar is difficult to reach the setting point consistently.
The ones that keep coming up.
Why did my marmalade turn out runny?
The setting point was likely not reached. Boil it for a few minutes longer and test again with a cold plate.
Can I use regular oranges?
Standard eating oranges lack the high pectin and acidity required for a firm set. Seville oranges are best for their balance of bitterness and structural integrity.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe