Sauce for duck: Place the orange juice in a 2-quart saucepan and ... a square of cheesecloth and tie up the edges with string to make a sachet. Place the oranges, juice, and simple syrup in ...
You can make this sauce to go with any poultry ... then return the pan to the heat with the duck. Add the star anise, orange zest, orange juice and half of the port to the pan.
Serve the duck and sauce alongside the wilted greens. If you are unable to source sea buckthorn berries, just omit and reduce the orange juice slightly for a more intense flavour.