Marinated red cabbage slaw

A zesty coleslaw made with red cabbage. Allow 3 hours marinating time for the flavours to mature.   Ingredients (6 servings): ½ small red cabbage, thinly sliced 1 red onion, thinly sliced ½ cup (75g) raisins 1 tablespoon caster sugar (optional) ¼ cup (60ml) balsamic vinegar ¼ cup (60ml) extra virgin olive oil 1/3 cup…