For best results, freeze in an electric ice maker. If you do not have an ice cream maker, transfer the mixture to a stainless steel or enamel bowl and freeze for 1 hour or until the mixture begins to freeze around the edges.
step 3
Whisk well to break down the ice crystal evenly. Return to freezer and freeze for a further 1-1 1/2 hours, whisking every 20 minutes, until firm.
step 4
Transfer the yogurt to a plastic container, cover and store in the ice compartment of your refrigerator until ready to serve.