Overnight French Toast with Cranberries and Pecans

Name: Overnight French Toast with Cranberries and Pecans
Ingredients: Cooking spray; ¾ cup packed light brown sugar; ¼ cup plus 2 tablespoons (3 ounces) salted butter; 3 tablespoons pure maple syrup; 1 (16-ounce) challah bread loaf, cut into 1/2-inch slices; 8 large eggs; 2 ½ cups half-and-half; 1 tablespoon bourbon (optional); 2 teaspoons vanilla extract; 1 teaspoon grated orange zest (from 1 orange); ½ teaspoon ground cinnamon; 1 cup fresh cranberries (about 3 1/2 ounces) or unthawed frozen cranberries (from 1 [5-ounce] package); ½ cup chopped pecans; Powdered sugar