Ingredients
Method
- Combine all ingredients except the Grand Marnier and orange zest in a pot. Simmer on medium-low to low until thick, about an hour and a half, or until you have 2 cups. Taste, and add more sugar if you wish, but it should be somewhat tart.
- Allow to cool.
- Serve cold or at room temperature, adding the Grand Marnier (if using) and, last, the orange zest before serving.