Preheat oven to 350 degrees F. Butter your bread pan.
In a bowl, whisk together your dry ingredients. Flolur, baking soda, salt, and cinnamon. Set aside.
In a larger bowl, or in your stand mixer. Cream the butter and sugar togethe, until well mixed.
Add in your bananas and mix until well mashed.
Add your eggs and vanilla and mix until well combined
Add in your sourdough discard and mix until incorporated.
Add your dry ingredients to your wet ingredients and mix on low speed until combined. Then gently fold in your chocolate chips with a spatula. (or your nuts, or both)
Pour the dough into your bread pan and bake for 60 minutes or until a toothpick inserted in the center comes out clean.
Let the bread cool in the pan for about 10 minutes before removing to a wire rack to cool completly.
Enjoy warm, or toasted with butter.