Banana Dough
1-Heat the milk in a bowl in: Heat the milk in a bowl in the microwave until warmed to 110℉. Sprinkle the yeast on top and let it rest for 10 minutes.
2-In a large bowl, mix the flour,: In a large bowl, mix the flour, sugar, and salt together. Add the cubed butter and use a pastry kneader or your hands to knead the butter into the dough. Do this until the butter is the size of a pea.
3-Add in the milk/yeast, beaten egg, and: Add in the milk/yeast, beaten egg, and mashed bananas to the dry ingredients. Using a mixer with a dough hook, mix on low speed until a dough starts to form. Switch to medium speed and knead for 5 minutes. *Making by hand instructions in the recipe notes.
4-Preheat the oven to 200℉: Preheat the oven to 200℉. Spray a large mixing bowl with nonstick spray. Place the dough in the bowl. The dough will be sticky, but not overly sticking to your hands. Cover the bowl with a kitchen towel.
5-Place in the oven, turn off the: Place in the oven, turn off the oven, and crack open the door. Let it rise for 1 hour. Since there is so many wet ingredients, in needs the extra warmth with yeast to rise well.

Cinnamon Banana Filling
6-In a small bowl using a hand: In a small bowl using a hand mixer, beat the butter on high speed until smooth. Add in the brown sugar and cinnamon. Mix on medium speed for 1 minute.
7-Place the dough on a lightly floured: Place the dough on a lightly floured surface. Sprinkle a little extra flour on top of the dough. Roll into a large rectangle about 1/4 inch thick using a rolling pin.
8-Spread the cinnamon filling over the dough: Spread the cinnamon filling over the dough using an offset spatula. Top with the sliced bananas, place these evenly.
9-Roll the dough starting on the short: Roll the dough starting on the short side. Roll into a log. Use a serrated knife to cut the uneven ends off. Use the knife to lightly saw into 12 even rolls. *Overnight instructions in the recipe notes.
10-Spray a 9X13-inch pan with baking nonstick: Spray a 9X13-inch pan with baking nonstick spray. Place the rolls evenly in the pan. Cover with a kitchen towel and let rise for 20 minutes. Preheat the oven to 375℉.
11-Bake for 28-33 minutes until the tops: Bake for 28-33 minutes until the tops are lightly golden brown.

Cream Cheese Icing
12-In a small bowl, using a hand: In a small bowl, using a hand mixer, beat the butter and cream cheese on high speed for 1 minute.
13-Add in the powdered sugar and vanilla: Add in the powdered sugar and vanilla. Mix on low speed until combined, switch to high speed and mix until creamy.
14-Use a spoon to evenly dollop the: Use a spoon to evenly dollop the icing on each roll, and spread.