Cranberry Orange Sauce

2 (8-ounce) packages cranberries, fresh or frozen   
1 orange, zest cut into strips and juiced   
1/2 cup sugar   
1 cinnamon stick   
Gran Marnier to taste  

Put all the ingredients into a saucepan over medium heat and simmer until the cranberries burst and the sauce thickens, about 15 to 20 minutes
Serve at room temperature or cool and refrigerate.
Remove the cinnamon stick before serving.

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