Creating Clean Southern Banana Cobbler is as easy as following these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Baking Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
3. Mix Wet Ingredients: In a large bowl, combine the mashed bananas, melted butter, sugar, and vanilla extract. Mix well until smooth.
4. Combine Dry Ingredients: In another bowl, whisk together the flour, baking powder, salt, and cinnamon (if using).
5. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, alternating with the milk. Stir until just combined; do not overmix.
6. Add Nuts: If desired, fold in the chopped nuts for added texture and flavor.
7. Pour Batter: Pour the batter evenly into the prepared baking dish.
8. Bake: Place the dish in the preheated oven and bake for 30 minutes or until a toothpick inserted in the center comes out clean.
9. Cool: Allow the cobbler to cool for a few minutes before serving.

Following these steps will ensure that your Clean Southern Banana Cobbler turns out perfectly every time, providing a delightful dessert that everyone will love.