Creating New Orleans Bread Pudding can be straightforward if you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter.
2. Prepare Bread: In a large mixing bowl, combine the cubed French bread and raisins (if using).
3. Mix Custard: In another bowl, whisk together the milk, granulated sugar, eggs, vanilla extract, cinnamon, nutmeg, and melted butter until smooth.
4. Combine Mixtures: Pour the custard mixture over the bread cubes, ensuring all pieces are soaked. Let it sit for about 15 minutes to absorb the liquid.
5. Add Alcohol: If desired, stir in the bourbon or rum for an extra punch of flavor.
6. Transfer to Baking Dish: Pour the soaked bread mixture into the greased baking dish, spreading it evenly.
7. Bake: Place the dish in the preheated oven and bake for 40-50 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
8. Cool: Remove from the oven and let it cool for about 10-15 minutes before serving.
9. Dust with Powdered Sugar: If desired, dust the top with powdered sugar before serving for an elegant touch.

These steps will guide you in creating this incredible dessert effortlessly.