It's not an Aussie burger without beetroot. This quick relish adds sweet and sour flavour and cuts through the richness of the meat, bacon and cheese.
3 medium beetroots cooked (or 440g tin beetroot, drained)
Zest of 1 orange
1 cup brown sugar
1 cup vinegar
Wearing protective gloves, peel beetroots, then coarsely grate in a food processor or box grater.
Place in a medium pot with remaining ingredients, bring to the boil, then reduce heat and cook for 20 minutes, until thickened.
Remove from heat and allow to cool.