Follow these simple steps to create the perfect Croissant Bread Pudding:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish with butter or non-stick spray.
2. Prepare the Croissants: Tear the croissants into bite-sized pieces and place them in the prepared baking dish.
3. Make the Custard Mixture: In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, granulated sugar, vanilla extract, ground cinnamon, and salt until smooth.
4. Combine: Pour the custard mixture evenly over the croissant pieces. Gently press down on the croissants to ensure they soak up the custard.
5. Add Mix-Ins: If desired, sprinkle chocolate chips and raisins over the top for added flavor and texture.
6. Let It Sit: Allow the mixture to sit for about 15 minutes, giving the croissants time to soak up the custard.
7. Bake: Place the baking dish in the preheated oven and bake for 40-50 minutes or until the top is golden brown and a knife inserted into the center comes out clean.
8. Cool: Remove from the oven and let it cool for 10-15 minutes before serving.
9. Dust with Powdered Sugar: For an elegant touch, dust the top with powdered sugar before serving.

These steps will guide you to create an incredible Croissant Bread Pudding that is both satisfying and delicious.