Position an oven rack in the center and preheat the oven to 350F degrees. Line an 8-inch square pan with non-stick foil or parchment for easiest cleanup. Or lightly grease the pan with non-stick cooking spray.
In a small bowl, whisk together the flour, cinnamon, baking powder and salt until well blended.
In a mixing bowl, beat together the butter and brown sugar with an electric mixer on medium speed until creamy.
Add the egg, mashed bananas and vanilla and beat until well blended.
Add the flour mixture to the banana mixture and stir just until combined, then stir in the chocolate chips, coconut and walnuts.
Spread the batter evenly into the prepared pan and bake until set, 25 to 30 minutes.
Remove from the oven and place the pan on a wire rack to cool completely.
For best results let the bars sit overnight before cutting and serving.
Cut into 16 bars.
Notes
Serving size: 1 square (1/16th recipe)WW Points: 8Check your WW Points for this recipe and track it in the WW app. (Must be logged into WW on a smartphone or tablet.)7SmartPoints (Green plan)7SmartPoints (Blue plan)7SmartPoints (Purple plan)4PointsPlus (Old plan)These bars were very good, but still a little more cakey than I want. The next time I make them I am going to see if I can make them more "blondie-like" in texture by adding 1/2 cup quick oats and substituting the baking powder for 1/4 teaspoon baking soda. I'm also going to leave out the cinnamon.