Creating the amazing Creme Brulee French Toast Casserole is simple! Follow these steps for the best results:

1. Prepare the Dish: Grease a 9×13-inch baking dish with cooking spray or butter.
2. Cubing the Bread: Place the bread cubes in an even layer in the prepared baking dish.
3. Mix the Custard: In a large mixing bowl, whisk together the eggs, whole milk, heavy cream, granulated sugar, vanilla extract, salt, and cinnamon until smooth and well combined.
4. Combine Bread and Custard: Pour the custard mixture evenly over the bread cubes, pressing down gently to ensure all the bread is soaked.
5. Chill: Cover the baking dish with plastic wrap and place it in the fridge for at least 2 hours, or overnight for best flavor.
6. Preheat the Oven: When ready to bake, preheat the oven to 350°F (175°C).
7. Brown Sugar Topping: In a small bowl, mix the brown sugar with the melted butter until crumbly. Sprinkle this mixture evenly over the soaked bread.
8. Bake: Place the dish in the preheated oven and bake for 45-50 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
9. Cool Slightly: Remove from the oven and let it cool for a few minutes before serving.

Your delicious and creamy Creme Brulee French Toast Casserole is now ready to be enjoyed!