Monkey Tail Banana Cake

Name: Monkey Tail Banana Cake
Ingredients: 3/4 cup unsalted butter, at room temperature; 1 1/2 cups packed light brown sugar; 1 1/2 cups granulated sugar; 3 large eggs; 6 medium-size ripe bananas, mashed; 1 (16-ounce) container sour cream; 2 teaspoons pure vanilla extract; 4 1/2 cups all-purpose flour; 1 tablespoon baking soda; Salt; 1 cup chopped pecans, optional; 1 cup mini semisweet chocolate chips; 1 (13-ounce) container chocolate-hazelnut spread (recommended: Nutella); 1 (8-ounce) block cream cheese, softened; 1/2 cup confectioner's sugar; 1 teaspoon pure vanilla extract; 2 cups heavy whipping cream