I haven't personally tried it, but I see no reason that this dish wouldn't work as a keto-friendly dessert if you swapped in some powdered Swerve for the powdered sugar. I also imagine it would take well to extra ingredients like peanut butter powder or cocoa powder, depending on the flavor you're going for. If you try any of these swaps, holler at me in the comments below! I'd love to know how they turn out.