Bring the wine, cinnamon sticks, cloves, star anise and orange juice to the boil in a large pan. Reduce the heat and simmer for 30 mins until the wine has reduced by half. Remove and discard the aromatics.

Add the cranberries, both sugars and the orange zest to the pan and cook over a low-medium heat for 10 mins, stirring occasionally until the sugar has dissolved. Simmer for 15-20 mins more until the cranberries have started to burst and soften, creating a glossy, jam-like consistency. Remove from the heat and stir in the brandy, if using.

Cool a little jam on a teaspoon, then taste and sweeten with a sprinkle of caster sugar if the cranberries are too tart. Return to the heat for 2 mins, stirring until the sugar has dissolved.

Spoon the jam into two 324ml sterilised jars (see tip, below), seal and cool. Will keep chilled for up to three months. Once opened, use within two weeks.