Peel and slice bananas into 1/2-inch slices for easier blending (large chunks tax the motor). Then add to a parchment-lined baking sheet and freeze until firm (3-4 hours or overnight).
(for food processor) Add sliced frozen bananas to a food processor fitted with an “S” blade. Then blend for 4-5 minutes or until completely smooth, fluffy, and blended. You’ll need to stop occasionally to stir and scrape the sides. (if you are making strawberry, berry, or salted caramel flavour, add the ingredients into processor, all the others, mix in after)
(for high speed blender) Add sliced frozen bananas to a high-speed blender and turn the dial to its lowest setting. Once it’s started blending, switch to high and use the tamper to press down and stir/agitate the bananas, which should turn into soft-serve texture. (if you are making strawberry, berry, or salted caramel flavour, add the ingredients into blender, all the others, mix in after)
For true “ice cream” texture vs. soft serve, simply spread into a Tupperware or loaf pan and freeze for 2-3 hours. Then scoop with an ice cream scoop! If too firm, let thaw 15-30 minutes to soften.