Creating Decadent Cinnamon Roll Bread Pudding is simple if you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking dish.
2. Prepare the Cinnamon Rolls: Cut the cinnamon rolls into bite-sized pieces and place them evenly in the greased baking dish.
3. Make the Custard Mixture: In a large bowl, whisk together the eggs, whole milk, heavy cream, granulated sugar, vanilla extract, ground cinnamon, and salt until well combined.
4. Combine Mixtures: Pour the custard mixture over the cinnamon roll pieces, ensuring all pieces are saturated. Gently press down to help the bread soak up the liquid.
5. Add Optional Ingredients: If using, sprinkle the chopped nuts and raisins over the top for added texture and flavor.
6. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
7. Cool: Remove from the oven and allow it to cool for about 10-15 minutes before serving. This will help the pudding set a little more.
8. Prepare Icing (Optional): If desired, prepare a simple icing by mixing powdered sugar with a bit of milk and vanilla. Drizzle over the top before serving.

These steps will guide you in creating this incredible dish with ease.