Preheat oven to 300 degrees F. Spray your 8-9" bread pan with non-stick spray or line with parchment. Set aside.
Whisk together flour, baking soda & salt in a small bowl. Set aside.
In a large mixing bowl, cream together butter and brown sugar until well blended. Stir in spices, eggs, vanilla and bananas.
Stir in flour mixture until just incorporated.
Fold in cranberries, setting several aside to top bread with, if you'd like.
Transfer mixture to bread pan. Sprinkle top with coarse sugar and top with remaining cranberries, if desired.
Bake for 60-65 minutes at 300 degrees F. Bread will be a dark brown color and internal temp will read 190 degrees F when done.
Cool in pan for 20 minutes. Overturn loaf onto a cooling rack to cool rest of the way. Slice & enjoy!