Soften the cream cheese. Let it sit at room temperature for 20–30 minutes so it blends smoothly.
Cold cream cheese can leave lumps.
Blend the base. In a blender or food processor, add cream cheese, Greek yogurt, milk, sweetener, vanilla, lemon juice, lemon zest, and salt. Blend until completely smooth and airy, about 30–45 seconds. Taste and adjust sweetness or lemon.
Chill the mixture. Transfer to a container, cover, and refrigerate for at least 2–3 hours.
A cold base freezes faster and creamier.
If using an ice cream maker. Churn according to the manufacturer’s instructions, typically 15–20 minutes, until it reaches soft-serve consistency. Fold in any mix-ins at the end.
If making no-churn. Pour the chilled mixture into a shallow, freezer-safe pan. For best texture, freeze for 2–3 hours, whisking or stirring every 30 minutes to break up ice crystals.
After 2 hours, fold in any mix-ins and return to the freezer.
Freeze to set. Once it reaches soft-serve stage, you can serve immediately or transfer to a lidded container and freeze 2–4 more hours for scoopable firmness.
Serve smart. Let the ice cream sit at room temperature for 5–10 minutes before scooping. Dip your scoop in warm water for cleaner, round scoops.