Banana Bread Pudding Cake Recipe

Name: Banana Bread Pudding Cake Recipe
Ingredients: 1 stick butter, melted; 2 tablespoons creamy peanut butter, melted; 3/4 cup granulated sugar; 1/4 cup light brown sugar, packed; 1 large egg; 1/2 cup sour cream (Greek yogurt may be substituted); 1 1/2 teaspoons vanilla extract; 2 large or 3 small ripe bananas, mashed; 1 3.5-ounce box vanilla or French vanilla-flavored instant pudding mix, (make sure it says instant on the box and use regular, not sugar-free); 1 cup all purpose flour; 3/4 teaspoon baking soda; 1/2 teaspoon salt