INGREDIENTS
1 cup
plus 1 tablespoon all-purpose flour
1 tsp
baking powder
1/4 tsp
salt, or to taste
1/4 tsp
baking soda
2
medium very ripe bananas, peeled
1/3 cup
granulated sugar
1/4
cup vegetable or canola oil
1
large egg
2
rounded tablespoons sour cream (lite is okay or Greek yogurt may be substituted)
2 tbsp
creamy peanut butter
1 tsp
vanilla extract
3/4 cup
walnuts, roughly chopped or 3/4 cup mini semi-sweet chocolate chips, optional