01 - Place the frozen banana slices into a high-powered blender or food processor.
02 - Blend on high, stopping to scrape down the sides as needed, until the mixture is completely creamy and smooth, about 1 to 2 minutes.
03 - Add vanilla extract or any optional flavor additions such as cocoa powder or frozen berries, then blend again until fully combined.
04 - For a firmer, scoopable texture, transfer the nice cream to a freezer-safe container and freeze for 1 to 2 hours before serving.
05 - Scoop into bowls, add desired toppings, and serve immediately.