You can optionally caramelize the bananas first for added flavor (it's delicious). To do so, heat 1 tablespoon coconut oil in a large sauté pan over medium heat. Slice the bananas in half lengthwise, add to the pan, and caramelize for several minutes. Use a spatula to flip the bananas and caramelize on the other side. The bananas may fall apart a bit, which is fine. Remove the pan from the heat and allow to cool for several minutes. Place in a resealable bag and freeze the bananas before continuing with the recipe.