In a medium saucepan, whisk together the heavy cream, almond milk, sweetener, matcha green tea powder, vanilla extract, and salt.
Heat the mixture over medium heat, stirring occasionally, until it begins to steam but not boil.
Remove the mixture from heat and let it cool to room temperature.
Pour the mixture into an ice cream maker and churn according to the manufacturer's instructions until the ice cream is thick and creamy.
Transfer the ice cream to a freezer-safe container and freeze for at least 2 hours or until the ice cream is firm.
When ready to serve, remove the ice cream from the freezer and let it sit at room temperature for 5-10 minutes to soften.
Scoop the ice cream into bowls or cones and enjoy!