Banana Bread Meets Bread Pudding in the Ultimate Fall Dessert

Name: Banana Bread Meets Bread Pudding in the Ultimate Fall Dessert
Ingredients: 454 g challah or brioche bread (16 ounces; about 1 loaf), cut into 1 1/2-inch cubes; 1 1/2 cups (355 ml) whole milk; 1 cup (7 1/2 ounces; 216 g) heavy whipping cream; 1 (14-ounce) can sweetened condensed milk; 226 g light brown sugar (about 8 ounces; 1 packed cup, plus 2 packed tablespoons), divided; 4 large eggs; 1 tablespoon (15 ml) vanilla extract; 1 teaspoon ground cinnamon; 1/2 teaspoon ground nutmeg; 1/2 teaspoon Diamond Crystal kosher salt; for table salt, use half as much by volume; 680 g (1 1/2 pounds) very ripe bananas (about 4 or 5 bananas), mashed; 126 g (4 1/2 ounces; about 1 cup) chopped pecans, toasted, optional; Cooking spray; 85 g unsalted butter (3 ounces; 6 tablespoons); 198 g (7 ounces; 1 cup) granulated sugar; 1/2 cup (120 ml) heavy whipping cream, at room temperature; 1/4 teaspoon Diamond Crystal kosher salt; for table salt, use half as much by volume