Instructions:
- I preheated oven to 350 degrees F and spray a jelly roll pan with cooking spray.
- I beat sugar, sour cream, butter, and eggs using an electric mixer, add mashed bananas and pure vanilla extract.
- Then I added flour, salt, and baking soda and blend for more than 2 minutes.
- I spread batter evenly into pan and baked for 20 to 25 minutes or until golden brown.
- Meanwhile, I made the brown butter frosting, I heated butter in a large saucepan over medium heat until boiling.
- Then I added powdered sugar, milk, and vanilla, whisked together until smooth, and poured it over the warm bars
IT WAS AMAZIIIIING!
ENJOY.