Combine the bananas, dates, and almond butter in a blender. Blend contents until smooth. Add 1 tablespoon of water if necessary. 

Using a mixer or an electric egg beater, whip 6 egg whites until hard peaks form. Fold the blended contents into the egg whites, and whip again. 

Pour the mixture into a tupperware and place in  the freezer. Takes approximately 4-6 hours to freeze. Serve once frozen. Enjoy!