Kue Pisang dengan Frosting Krim Keju

Bahan-bahan (12 porsi)

• ½ cup mentega tawar
• 1 cup gula pasir
• ½ cup brown sugar, (packed)
• 2 large eggs, (room temperature)
• 1 tablespoon ekstrak vanila
• 1 cup sour cream
• 1 1/2 cups mashed bananas (about 3 bananas)
• 2 cups all-purpose flour
• 1 teaspoon soda kue
• ½ teaspoon garam
• ½ cup unsalted butter, (room temperature)
• 4 ounces cream cheese, (softened)
• 2 teaspoons vanilla bean paste, (or vanilla extract)
• 2 tablespoons susu
• 2 ½ cups gula bubuk
• ¼ teaspoon garam
• irisan pisang segar untuk topping, (jika diinginkan)