Preheat your oven to 350°F (175°C) and prepare a 9x13-inch baking pan with baking spray.

Mash the extremely ripe bananas in a bowl, adding lemon juice to prevent browning.

Whisk together the flour, baking soda, baking powder, and salt in a separate bowl.

Cream the butter and sugars in a stand mixer until light and fluffy, then add the eggs and vanilla.

Gradually combine the dry ingredients with the wet mixture, alternating with the buttermilk.

Fold in the mashed banana mixture gently, ensuring even distribution.

Pour the batter into the prepared pan and bake for 40 to 50 minutes.

Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack.

Beat the cream cheese and butter until smooth, then add vanilla, salt, and powdered sugar to achieve desired frosting consistency.

Once the cake is cool, frost with the cream cheese frosting and enjoy!