Caramel Croissant French Toast Bake

Name: Caramel Croissant French Toast Bake
Ingredients: 10 each - large butter croissants, torn into halves (preferably day-old); 6 each - large eggs; 2½ cups - half & half; 2 tbsp - granulated sugar; ½ cup - light brown sugar, packed; 1 tbsp - pure vanilla extract; ½ tsp - kosher salt; 1 tbsp - ground cinnamon; ½ tsp - ground nutmeg; 8 oz - cream cheese, cubed; 1 cup - pecans, roughly chopped or halved; powdered sugar, for dusting (optional); 1 stick - butter, salted; ½ cup - granulated sugar; ½ cup - brown sugar, packed; ¼ cup - bourbon; ½ cup - heavy cream