Follow these steps to create your delicious King Cake Bread Pudding:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish.
2. Prepare the King Cake: Cut the king cake into 1-inch cubes and place them in the greased baking dish.
3. Make the Custard: In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, granulated sugar, vanilla extract, cinnamon, nutmeg, and salt.
4. Combine: Pour the custard mixture evenly over the bread cubes. Gently press down to ensure all the bread is soaked in the custard.
5. Let It Sit: Allow the mixture to sit for about 15-20 minutes, giving the bread time to absorb the custard.
6. Bake: Place the baking dish in the preheated oven and bake for 45-50 minutes, or until the pudding is set and the top is golden brown.
7. Cool: Remove from the oven and let it cool for about 15-20 minutes.
8. Make the Glaze: In a small bowl, combine the powdered sugar and milk. Whisk until smooth and adjust the consistency as needed.
9. Drizzle: Drizzle the glaze over the warm bread pudding.
10. Decorate: Sprinkle colored sugar on top for an extra festive touch.

These steps will guide you in creating this incredible King Cake Bread Pudding effortlessly.