Peel and slice the bananas. Place them in a container with a lid and freeze for at least 3 hours or overnight.
Once frozen, place the bananas in a food processor or blender and add the almond butter. Blend for 2-3 minutes until smooth and thick, like ice cream.
Serve the ice cream immediately or place it in a large tupperware container, cover and freeze for at least 2 hours for it to take consistency. Once ready, serve with more almond butter, nuts or fruit.