2 cups water, 1 cup caster sugar, 1 orange ( sliced), 1 cinnamon stick, 8 plums ( halved , stones removed).
In a medium saucepan, combine the water and sugar. Stir over low heat for 3 – 4 minutes, without boiling, until the sugar dissolves. Add the orange slices and cinnamon to the syrup. Bring to the boil on high. Reduce the heat to Low and simmer, uncovered for 20 minutes until it has thickened slightly. Add the plums and simmer , uncovered for 3-5 minutes until they are just tender.