n a medium bowl, gently toss together the flour, cinnamon, baking soda, baking powder, and salt. Set aside. Using an electric stand or hand mixer, beat the sugar, butter, and egg in a large bowl until fluffy, scraping down the sides as needed. On low speed, beat in the mashed bananas and yogurt. By hand, stir in the dry ingredients mixing until everything is just combined. Do not overmix.