Mash the ripe bananas.
Add eggs, allulose, and sifted almond flour.
Add baking powder and cinnamon powder, and mix well.
Pour the batter into a loaf pan greased evenly with oil.
Bake in an air fryer at 175°C for 35 minutes.
Let it cool slightly, cut into single servings, wrap with plastic wrap, and store in the freezer.