Step 1 Combine sugar, corn syrup and one-half cup plus 1 tablespoon water in a large saucepan and cook over low heat until the sugar is dissolved.
Step 2 Turn off the heat and when the mixture reaches 70 degrees, add the blood orange juice and mix well.
Step 3Pour into an ice cream machine and make according to the manufacturer's instructions.
Step 4Remove and place sorbetto in a lidded container, covering the surface with plastic wrap, then covering with a lid and placing in the freezer.