Use the stand mixer to make the meringue. Start on a slow speed to whip up the powdered sugar, vanilla extract, aquafaba, and cream of tartar. Gradually, begin to increase the speed until it is on high. Then, whip for 6-10 minutes or until the meringue forms stiff peaks.
¾ cup aquafaba, 1 ½ cups organic powdered sugar, 1 teaspoon vanilla extract, 2 teaspoons cream of tartar
In a blender combine the silken tofu, cocoa powder, and pinch of salt if you are using it. Blend on high until combined and smooth, it will resemble pudding.
1 (16 ounce) block silken tofu, ½ cup cocoa powder, Pinch of salt
Slowly, add the silken tofu mixture to the meringue. Fold the mixture together until it is mixed as much as you can. Do this 2-3 times in increments, do not add all the silken tofu mixture at once. Note: mine wasn't perfectly mixed and it was okay, we just want to get it as well incorporated as we can.
Transfer into a container. I like to use a loaf pan actually. Transfer to the freezer, and freeze for at least 4-6 hours or overnight. If you want it to be a harder texture freeze for at least 8 hours.
When you are ready allow the ice cream to soften slightly, scoop it out and enjoy.