Creating Croissant Bread Pudding is as easy as following these simple steps:

1. Preheat the Oven: Start by preheating your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
2. Prepare Croissants: Tear the croissants into bite-sized pieces and evenly distribute them in the greased dish.
3. Mix Wet Ingredients: In a large mixing bowl, whisk together the eggs, milk, heavy cream, granulated sugar, vanilla extract, ground cinnamon, and salt until well combined.
4. Combine Mixtures: Pour the mixture over the croissant pieces, ensuring they are all coated. Gently press the croissants down to soak up the liquid.
5. Add Optional Ingredients: If using, evenly sprinkle raisins or chocolate chips over the mixture for added flavor.
6. Bake: Place the dish in the oven and bake for 35-40 minutes, or until the top is golden brown and a knife inserted comes out clean.
7. Cool: Remove the pudding from the oven and let it cool for 10-15 minutes before serving.

These straightforward steps will guide you to create a delicious Croissant Bread Pudding without fuss.