Add the ice to a blender. Add the tequila, lime juice and curacao and blend. Pour the frozen margarita into a resealable freezer bag and freeze until serving.
Run an orange wedge around the rim of 6 margarita glasses and dip the rim of each in the orange sugar. Fill with the frozen margarita and decorate the rim of each glass with an orange slice.
This recipe has been updated and may differ from what was originally published or broadcast.