Banana Bars in 35 Minutes

Instructions:

1. Preheat oven to 350°F (175°C). Grease a 10x15 inch jelly roll pan and line it with parchment paper, leaving an overhang on the sides. Mash the bananas in a small bowl until smooth.
2. Cream together the softened butter and granulated sugar until pale and fluffy. Beat in the eggs one at a time, then stir in the sour cream and vanilla extract.
3. In a separate bowl, whisk together the flour, baking soda, and salt. Gradually fold the dry ingredients into the wet batter, then stir in the mashed bananas until just combined.
4. Spread the batter evenly into the prepared pan. Bake for 18-22 minutes until the edges are golden brown and the center springs back. Allow the bars to cool completely in the pan.
5. Beat the cream cheese and softened butter together until velvety and lump-free. Gradually add sifted powdered sugar and vanilla extract. Add heavy cream one tablespoon at a time if needed for a spreadable consistency.
6. Smooth the frosting over the cooled bars using an offset spatula.