Crème Brûlée Banana Bread

Name: Crème Brûlée Banana Bread
Ingredients: Cooking spray; 1 3/4 c. (210 g.) all-purpose flour; 1/2 tsp. baking soda; 1/2 tsp. kosher salt; 1 1/2 c. mashed ripe bananas (from about 3 bananas); 3/4 c. (150 g.) light brown sugar; 1/4 c. (50 g.) granulated sugar; 2 large eggs; 1/2 c. (1 stick) unsalted butter, melted, cooled; 1 tsp. pure vanilla extract; 4 oz. cream cheese, softened; 1/4 c. (30 g.) confectioners' sugar; 1/2 tsp. pure vanilla extract; 1/3 c. (66 g.) granulated sugar; A blow torch