01 -
In a large mixing bowl, whisk together grape juice, sugar, and lemon juice if using, until sugar is fully dissolved. Add the heavy cream, whole milk, and vanilla extract if desired. Whisk until thoroughly blended.
02 -
Pour mixture into an ice cream maker and churn according to manufacturer’s instructions, usually 20 to 25 minutes, until it achieves a soft-serve consistency. Transfer to an airtight freezer container, cover, and freeze for 4 to 6 hours until firm.
03 -
Pour mixture into a shallow, freezer-safe container. Freeze for 45 minutes, then stir vigorously with a fork or whisk to break up ice crystals. Repeat every 30 minutes for 3 to 4 hours, until smooth and creamy. Freeze until firm.
04 -
Remove ice cream from freezer 5 minutes before serving to allow it to soften slightly. Scoop into bowls or cones and enjoy.