Finely dice the orange, removing any seeds but including the rind. Add orange, any juice and water to a medium heat and bring to a boil and cook until almost all the water has boiled off.

Add the cranberries, blueberries, sugar and raisins and bring to a boil. Turn down and simmer for 15- 20 minutes and cranberries have all popped.

Add the slivered almonds and cook another 5 minutes.

Remove from heat, add rum and stir to combine. Ladle into sterilized jars, wipe rims and place on lids. Process in a water bath for 15 minutes.