Mmm, often we buy ready-made in green bottles from one of the local stores and drink it over a little over proof rum. If I'm in charge (rarely), I like to fuss with some slices of orange and a little ice. But we also buy the dried sorrel and do the same as you - bring to the boil with chopped fresh ginger, allspice, cloves and slices of orange and allow to infuse before straining and adding sugar to taste ... and then pouring over overproof rum 😂. I like it as a long cool soft drink, too, with soda, orange slices and mint, spiced in the winter and less so in the summer when it is very refreshing.