Mix 1 cup water and 1 C sugar in a sauce pan and bring to boil . Simmer for about a minute and turn off the heat . Cool completely .
Prepare the rice noodles according to the package instructions and set aside to cool .
Add the orange zest, noodles and the orange juice to the cooled syrup and mix well . Pour this mixture to a shallow pan and place in the freezer for about 1 hr or so .
Remove from the freezer and mix / breakup the ice using a fork and return to the freezer. Repeat after 1 hour .
When ready to serve remove from the freezer . Place a few scoops in a serving bowl , Pour 2 to 3 tablespoons or orange juice on top and garnish with chopped pistachios .
Notes
Tastes best when made with freshly squeezed orange juice .