Creating these Banana Bread Cinnamon Rolls can be an enjoyable process. Follow these simple steps for success:

1. Mix the Dry Ingredients: In a large mixing bowl, combine 2 ½ cups of flour, sugar, yeast, baking powder, baking soda, and salt. Mix until well blended.

2. Combine the Wet Ingredients: In a separate bowl, mix the mashed bananas, warm milk, melted butter, and egg. Stir until uniform.

3. Combine Wet and Dry Mixtures: Pour the wet mixture into the dry ingredients, blending until just combined. Do not overmix.

4. Knead the Dough: Add in the remaining flour, a little at a time, until the dough is manageable. Knead on a floured surface for about 5-7 minutes until smooth and elastic.

5. Let the Dough Rise: Place the dough in a greased bowl, cover it with a damp kitchen towel, and let it rise in a warm place for about 1 hour or until it doubles in size.

6. Prepare the Cinnamon Filling: In a small bowl, mix together the brown sugar and ground cinnamon. Set aside.

7. Roll Out the Dough: Once the dough has risen, punch it down and roll it out on a floured surface into a rectangle, about 12×18 inches.

8. Spread the Filling: Spread the softened butter evenly over the rolled-out dough. Sprinkle the cinnamon-sugar mixture over the butter.

9. Roll the Dough: Starting from one long edge, tightly roll the dough into a log. Pinch the seams to seal.

10. Slice into Rolls: Cut the log into 12 equal pieces. Place them in a greased 9×13 inch baking dish.

11. Let Them Rise Again: Cover the cinnamon rolls with a kitchen towel and allow them to rise for another 30 minutes.

12. Preheat the Oven: Meanwhile, preheat your oven to 350°F (175°C).

13. Bake the Rolls: Bake for 25-30 minutes or until golden brown and cooked through.

14. Make the Glaze: In a medium bowl, whisk together the powdered sugar, milk, and vanilla extract until smooth. Adjust the consistency by adding more sugar or milk as needed.

15. Cool and Glaze: Allow the rolls to cool for about 15 minutes before drizzling the glaze on top.