Remove enough zest from the oranges to get 1 ½ tablespoons. Set aside.
Freshly squeeze enough oranges to arrive at 2 cups.
Weight out 7 ounces of sugar. Add that to your food processor or blender along with salt, zest, the juice and the milk.
Mix until all the sugar has been dissolved.
Place the mixture into a pourable vessel and refrigerate for at least 2 hours, up to overnight.
Pour into ice cream maker and process until it's like soft serve ice cream. Should take around 15 minutes.
Serve as soft serve or freeze for 3 hours to firm up.