In a large saucepan set over high heat, bring the sugar, water and orange juice to a boil. Whisk to help dissolve the sugar.

Add the cranberries and continue boiling for 2 minutes, then reduce the heat and simmer for 15 minutes or until the majority of the cranberries have burst.

Once the cranberries have burst, add the orange zest and cinnamon, whisk to combine, simmer for 2 more minutes.

Remove from heat and let cool at room temperature. Transfer to a bowl, cover with plastic wrap and chill for at least 1 hour.