Put all ingredients in a large saucepan and place over a high heat. Stir to combine.
Bring to just below a boil, then reduce the heat to medium and let simmer for 1 hour or until the mixture has thickened.
You can test the jam by placing a tiny spoonful on a saucer that has been chilled in the freezer – run a finger through the jam and if it doesn’t run back into the centre, it is set and ready to jar.
Spoon into sterilised jars and label.
Store in the fridge for up to 1 month