Place fruit and sugar in a bowl. Mix well, cover and place in the fridge for at least 24 hours.
Press the fruit through a fine mesh strainer reserving all the juice.
I also blended my nectarines and ran them through the strainer again, just to ensure I got all the juice.
Stir in the vinegar and place in a clean jar. Move it back to the fridge.
It will be ready to use in 24 hours, although I prefer to wait at least 3 days.
If you want to make the drink as I did, pour a few tablespoons of the shrub into your glass. Add in your ice, then the sparkling water, slices of nectarines, and added sweetener if you need it.
This will hold well in the fridge for at least a month. You can also store it at room temp as it is vinegar-based, but I prefer the fridge.
Now, sit back and enjoy. You deserve it.