The sweeteners you use are the difference between ice cream is scoopable and one that turns rock hard. I prefer a combination of Swerve Sweetener and either allulose or BochaSweet.
Choose a thick base.
By thick, I mean something that’s quite a bit thicker than heavy whipping cream or milk. This gives the ice cream some structure and make it less icy.
Whip the heavy cream. Whipping the heavy cream to stiff peaks replaces the churning process and makes the ice cream lighter and gives it more structure.