Heat up your oven to the broil setting. Sprinkle the cinnamon and cayenne on the banana halves and put on a baking tray. Broil for 5-7 minutes or until the bananas are well caramelized. Set aside to cool
Set the oven to 350 degrees. Blend the bananas with 2 tbsp. of the cubed butter in a food processor until smooth. Set aside.
Blend the banana chips in the blender until the desired consistency has been achieved. Add in the rice cakes and pulse until chunky, and not too smooth. Put on a baking tray and bake in the oven until crispy, about 10 minutes.
Mix together the banana mixture, and the rice cake mixture with the rest of the ingredients. Mix well to incorporate all ingredients.
Make 1-2 oz balls and bake in the oven for 10 minutes until the protein balls have set. Let cool and enjoy.