Creating these delightful Cinnamon Roll French Toast Bites is easy if you follow these steps:

1. Prepare the Bread: Cut the loaf of challah or brioche into bite-sized cubes, about 1-inch in size.
2. Mix the Custard: In a large bowl, whisk together the eggs, milk, vanilla extract, ground cinnamon, granulated sugar, and brown sugar until well combined.
3. Combine Bread and Custard: Gently fold the bread cubes into the custard mixture, ensuring each piece is well-coated. Let it sit for about 5-10 minutes to soak up the mixture.
4. Preheat the Oven: Preheat your oven to 375°F (190°C) and grease a baking dish with some of the melted butter.
5. Arrange the Bites: Pour the bread mixture into the greased baking dish, spreading it out evenly. Drizzle the remaining melted butter over the top.
6. Bake: Place in the preheated oven and bake for 15-20 minutes or until the top is golden brown and the custard is set.
7. Prepare the Icing: While the bites are baking, mix the powdered sugar and milk in a small bowl to create a smooth icing (optional).
8. Serve: Once baked, remove from the oven and allow to cool slightly before drizzling with icing. Dust with additional cinnamon and sugar if desired.

These simple steps will guide you in crafting these incredible Cinnamon Roll French Toast Bites effortlessly!