Preheat Oven: Preheat the oven to 180ºC (350ºF) (180ºC). Grease and line a 13 x 9 cake pan, set aside.
Mix Dry Ingredients: In a medium-sized mixing bowl, combine flour, baking powder, baking soda, cinnamon, and salt. Whisk until well mixed. Set aside.
Cream the Butter: In a large mixing bowl, using electric beaters or a stand mixer with the paddle attachment, add softened butter. Beat for a few seconds until creamy.
Add Sugars: Add both sugars and beat on medium-high speed for 2 minutes, scraping down the sides of the bowl as needed.
Incorporate Eggs: Add eggs one at a time, beating for 15 seconds after each addition and scraping the bowl as needed.
Mix in Wet Ingredients: Add mashed banana, milk, yogurt, olive oil, and vanilla. Beat until well combined for about 15 seconds.
Combine with Flour: Add half of the flour mixture and beat just until combined. Then add the remaining flour and mix until just incorporated, taking care not to over-mix.
Transfer Batter: Pour the batter into the prepared cake pan, smoothing out the top.
Bake: Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs, not wet batter and the cake is lightly golden all over.
Cool in Pan: Remove from the oven and let it cool in the pan for 15 minutes.
Remove from Pan: Carefully invert the cake onto a wire rack or chopping board to release it from the pan. Then flip it back onto a wire rack to cool completely.