Preserving

One thing I love about summer is the abundance of fruit and trying to preserve as much of summer as I can into little glass jars.

I have made several batches of Peach & Raspberry Jam, as well as a simple Apricot Jam, not to mention the Strawberry Jam which has been disappearing as fast as I make it.

two jars of orange marmalade with white board in background

We always have a constant supply of oranges at home, either to eat as is or to freshly squeeze at breakfast.

But I never really contemplated the idea of making orange marmalade at home until I was one day treating myself to some homemade fruit bread and realised that only orange marmalade would be the perfect accompaniment.

oranges at farmers market

Orange Marmalade Recipe

I gathered all of my books on making jam and was somewhat surprised to find that there were so many varied recipes for orange marmalade.

Some marmalade recipes required the orange rind to be soaked in water for 3 hours. Some required straining the fruit mixture through a piece of muslin overnight.

I ultimately settled on a marmalade recipe from one of my many French cookbooks which perhaps wasn’t the quickest recipe but it didn’t require any overnight preparation.

It was also a recipe which used the least amount of sugar; jam recipes often call for 1:1 ratio of fruit to sugar and which makes sense if you are preserving for the long haul (i.e. if you are making jam which might be eaten 2 or more years later), but which isn’t necessary if you know you will consume the jam over the coming weeks.

This particular orange marmalade is quite sweet, primarily because it uses sweet, blonde oranges and not the bitter Seville oranges.

Also, this marmalade recipe is quite persistent in trying to remove as much pith as possible, and blanching the peel beforehand helps to soften it so that you are not confronted with a chunk of bitter peel later.

jars of orange marmalade with spoon of marmalade on wooden board

Ginger Marmalade

I happen to love, love ginger jam and so I grated fresh ginger into half of the orange marmalade just before bottling them to make a small batch of ginger marmalade. It was also a quick way to add more variety to my current jam collection.

I quite like this marmalade recipe and would be curious to try it with grapefruit!

two jars filled with orange marmalade

How Long to Boil Jam

Making jam involves boiling the fruit with sugar in a large saucepan over high heat until it has thickened nicely.

How long you need to boil the jam depends on how much liquid there is to start with, as you essentially want most of the liquid to evaporate so that the mixture can thicken.

Obviously, some fruits contain more water than others, so some jams are relatively quick to make, whilst others require a bit more time.

Oranges, for example, contain a lot of water, so making marmalade generally takes a bit longer than other jams.

For the recipe below, I estimate that you need to boil the mixture on high heat for almost 30 minutes until you reach setting point.

two jars of orange marmalade on wooden board

Setting Point for Jam

Most recipes for jam suggest a setting point of 105°C (220°F).

The best way to test if a jam has reached setting point is to use a digital thermometer, sugar thermometer or jam thermometer.

However, I find that, even when using a thermometer, sometimes the jam is ready before or after reaching the desired temperatures.

So in addition to using a thermometer, I also use the jam plate test.

The Jam Plate Test

The jam plate test, also called the cold plate test or wrinkle test, is an effective way to test if your jam has reached setting point.

While you are making the jam, simply place 3 or 4 small plates in the freezer.

To test if your jam is ready:

  1. Place a spoonful of hot jam onto the cold plate, and use your finger (or a teaspoon) to run a line through the blob of jam.
  2. If the jam starts to fill the line, this means that the jam is still too liquid and runny, and that it is not yet ready.
  3. If the line remains and the jam does not fill the gap, then the jam has reached setting point and is ready.
how to make orange marmalade, check if the marmalade is ready with the plate test

How to Make Marmalade

For a printable recipe, please scroll down.

how to make orange marmalade, ingredients for orange marmalade
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how to make orange marmalade
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how to make orange marmalade
how to make orange marmalade
glass jars filled with orange marmalade
5 stars (6 reviews)

Orange Marmalade

An easy Orange Marmalade recipe with step-by-step photos. Add some fresh ginger to turn it into an Orange Ginger Marmalade.

Ingredients

  • 1.5 kg (3 ⅓ lb) blonde oranges
  • 800 g (3 ⅔ cups) caster sugar, (superfine sugar)
  • 1 small lemon, juiced

Instructions 

To prepare for the Jam Plate Test

  1. Place 3 or 4 small plates into the freezer.

To prepare the orange peel

  1. Wash and pat dry the oranges.
  2. Use a vegetable peeler to carefully peel the oranges into long strips, taking care not to have too much pith (white part of the rind) on the rind.
  3. Finely slice each strip of orange peel as thinly as possible.
  4. Bring a large pot of water to the boil.
  5. Cook the thinly sliced orange peel for 1 minute.
  6. Drain and repeat once more.
  7. Set the cooked orange peel aside.

To prepare the orange flesh and juice

  1. Use a sharp knife to remove as much pith as possible from the oranges, as the pith will make the marmalade bitter.
  2. Remove segments of the oranges between the membranes. Do this over a large bowl to catch all of the juice.
  3. Squeeze the membranes to get as much juice as possible.
  4. Discard the membranes but keep all of the seeds for later.

To calculate how much sugar to add

  1. Weigh how much orange flesh and orange juice you have. I do this by measuring the orange flesh and juice directly in a saucepan on a set of digital scales.
  2. Calculate how much sugar you need. You will need 80 g (1/3 cup) sugar for every 100 g (3.5 oz) of orange flesh and juice.
  3. Add the sugar to the orange mixture.

To cook the orange marmalade

  1. Wrap the orange seeds in some muslin.
  2. Add the wrapped orange seeds to the orange mixture.
  3. Add the lemon juice.
  4. Add the cooked thinly sliced peel.
  5. Cook the mixture over high heat until it has thickened.
  6. Stir the mixture frequently so that it doesn’t stick to the bottom of the pan.
  7. If you are using a sugar thermometer, the temperature should reach 105°C (220°F).
  8. Once the marmalade is ready, fill your sterilised jars with the marmalade and seal while still warm.

The Jam Plate Test

  1. If you are not using a sugar thermometer (or even if you are), to test if the marmalade has reached setting point, put a tablespoon of marmalade onto the chilled plate.
  2. Run your finger through the marmalade.
  3. If the line remains, the marmalade is ready. If the marmalade fills the line, it is still too liquid and has not yet reached setting point.
  4. If the marmalade is not ready, continue boiling the mixture and testing the setting point every 5 minutes or so.

Kitchen Notes

  • SETTING POINT TEMPERATURE
    When making this orange marmalade, I frequently find that the mixture reaches setting point at about 110°C (230°F). But I would advise to start checking for the setting point once the temperature reaches 105°C (220°F).
  • IF YOUR JAM OR MARMALADE HAS NOT SET PROPERLY
    If you end up bottling jam or marmalade which has not set – and you can tell if you tip the jar and the mixture sloshes around inside – simply empty the jars back into a large saucepan and reheat them until they have reached the desired thickness. You can try this a few hours after bottling when the jam has had time to cool, or even the next day. The jam should not suffer for this second cooking attempt, although you will have to rewash and sterilise all the jars again.
  • USING JAM SUGAR
    If you are using jam sugar (sugar with added pectin), you should leave out the lemon juice and orange seeds.
  • HOW TO MAKE GINGER MARMALADE
    To make ginger marmalade, grate in some fresh ginger to the finished marmalade while it is still hot. Add as much or as little ginger as you like. You can do this to the whole batch, or only some of the batch.
  • OVEN & STOVE TEMPERATURES
    All recipes on this website have been tested on an induction stove and/or with a conventional oven (i.e. an oven without fan). All recipes on this website use temperatures for a conventional oven, unless otherwise mentioned. Convection ovens (i.e. fan-forced ovens) are typically 20°C/70°F hotter than conventional ovens, but please check your manufacturer’s handbook.
  • CONVERSIONS
    To convert from cups to grams, and vice-versa, please see this handy Conversion Chart for Basic Ingredients.
Calories: 66kcal, Carbohydrates: 16.7g, Protein: 0.4g, Fat: 0.1g, Sodium: 0.7mg, Fiber: 1.4g, Sugar: 12g

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Update

This recipe was first published on 7 October 2012. It has been updated with new photos and more comprehensive recipe notes.