Preheat oven to 375°F and line a loaf pan with parchment.
In a bowl whisk together the flour, baking powder, baking soda, salt, and cinnamon until evenly combined.
In another bowl whisk the mashed bananas and browned butter until combined. add the brown sugar and granulated sugar and whisk until smooth.
Add the egg, greek yogurt, and vanilla. whisk until fully combined.
Add the dry ingredients into the wet ingredients and gently fold until mostly combined with a few streaks of flour remaining. avoid overmixing so the loaf stays soft and fluffy.
Pour the batter into the prepared loaf pan and smooth the top.
Bake for 5 minutes at 375°F, then reduce the oven to 350°F and bake for 40–50 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
Top with cream cheese icing, caramel syrup and sea salt flakes.
