In a large measuring cup, whisk together 2 cups of vanilla Greek yogurt, ½ cup of your chosen sweetener, ¼ cup of fresh lemon juice, the zest from one lemon, and a pinch of ground turmeric if desired. Blend until everything is well combined and smooth, which should take about 2-3 minutes.

If you own an ice cream maker, pour the mixture into the machine and churn according to the manufacturer's instructions, typically around 20-25 minutes.

No ice cream maker? Pour the yogurt mixture into ice cube trays or a shallow dish, freeze for at least 4-6 hours or until completely solid.

Once the mixture is frozen, remove the cubes and blend in a food processor or high-speed blender for 1-2 minutes until smooth.

Serve immediately for soft-serve or store in an airtight container for a firmer texture.