Adapted from Cook's Illustrated
2 cups freshly squeezed orange juice (I peeled 6 seedless oranges, ground them in a blender, and pressed the juice through a seive because I don't have a juicer)
1 cup sugar
1/2 cup water
juice of 1/2 a lemon
2 tablespoons vodka or orange flavored liquor
Combine water and sugar in a small saucepan, heat over meduim low heat until sugar is dissolved. Combine sugar mixture with orange juice, lemon juice, and vodka. Chill until completely cooled, preferably 4 hours. Freeze according to your ice cream maker's instructions.