To Die For Banana Cake with Vanilla Bean Frosting

Name: To Die For Banana Cake with Vanilla Bean Frosting
Ingredients: To Die For Banana Cake; 2/3 cup granulated sugar; 1/2 cup sour cream; 1 large egg; 2 tablespoons unsalted butter, room temperature; 3/4 cup mashed super ripe bananas; 1 teaspoon pure vanilla extract; 1/2 teaspoon baking soda; 1 cup all purpose flour; 1/4 teaspoon fine sea salt (or table salt); Vanilla Bean Frosting; 1/4 cup heavy cream; 1/2 teaspoon vanilla bean paste (or equal amount of pure vanilla extract); 1 1/4 cups confectioner's sugar