2 cups AP flour
1/2 cup brown sugar
1 1/4 tsp baking powder
1/4 tsp baking soda
1/2 tsp salt
1 cup chopped nuts (divided)
2/3 cup Carmel (divided)
2 large eggs
2-3 very ripe bananas
1 tsp vanilla extract
1/3 cup sour cream
1/2 cup butter