Follow these steps to create your Banana Cinnamon Rolls:

1. Activate Yeast: In a small bowl, combine the warmed milk and yeast. Let it sit for about 5-10 minutes until frothy.
2. Mix Wet Ingredients: In a large bowl, mix the mashed bananas, softened butter, granulated sugar, egg, and vanilla extract until smooth.
3. Combine Mixtures: Add the yeast mixture to the banana mixture, stirring until well combined.
4. Add Dry Ingredients: Gradually add the flour, salt, and 1 teaspoon of cinnamon. Mix until a soft dough forms.
5. Knead the Dough: Turn the dough out onto a floured surface and knead for about 5 minutes until smooth and elastic.
6. First Rise: Place the dough in a greased bowl, cover it with a clean cloth, and let it rise in a warm place for about 30 minutes or until doubled in size.
7. Prepare Filling: In a small bowl, mix together the brown sugar and ground cinnamon.
8. Roll Out Dough: Once the dough has risen, punch it down and roll it out into a rectangle about ¼ inch thick.
9. Spread Filling: Spread the softened butter over the dough, then sprinkle the cinnamon-sugar mixture evenly on top.
10. Roll Up the Dough: Starting from one long side, roll the dough tightly into a log shape.
11. Slice Rolls: Cut the log into 12 equal pieces and place them in a greased baking dish.
12. Second Rise: Cover the rolls with a cloth and let them rise again for about 20-30 minutes.
13. Preheat Oven: Preheat your oven to 350°F (175°C).
14. Bake Rolls: Bake the rolls for 25-30 minutes or until golden brown and cooked through.
15. Prepare Glaze: If desired, mix powdered sugar with milk to create a simple glaze while rolls are baking.
16. Cool Slightly: Allow the rolls to cool in the pan for about 10 minutes before drizzling with glaze.

By following these steps, you’ll create a batch of delicious Banana Cinnamon Rolls that are sure to delight your taste buds!