whew that's a mouth full!
2 cups all purpose flour
3/4 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
1/2 cup (1 stick) unsalted butter, room temperature
1 1/2 cups sugar
2 large eggs
1 1/4 cups sour cream
1 1/3 cups mashed ripe bananas (about 3 large)
2 tablespoons fresh lemon juice
2/3 cup powdered sugar
1 8-ounce package cream cheese, room temperature
Preheat oven to 350°F. Lightly butter and flour 13 x 9 x 2-inch metal baking pan. (I used a bundt pan instead)
In medium bowl, combine flour, baking soda, baking powder and salt. Using electric mixer, beat butter and 1 1/2 cups sugar in large bowl until blended. Add eggs and beat until fluffy. Mix in 3/4 cup sour cream, bananas and lemon juice. Add dry ingredients to banana mixture and beat until well blended. Transfer batter to prepared pan.
Bake cake until top is golden and tester inserted into center comes out clean, about 30 minutes. (Mine actually took closer to 40-45 minutes, but I also used a bundt pan so that may have been why) Cool completely on rack.
Beat remaining 1/2 cup sour cream, powdered sugar and cream cheese in large bowl until well blended. Spread frosting over cooled cake.