Baked French Toast Casserole

Instructions

1. Prepare the baking dish
   Grease a 9x13-inch baking dish with butter. Place the bread cubes evenly in the prepared baking dish.
2. Make the custard mixture
   In a large bowl, whisk together the eggs, milk, heavy cream, sugar, vanilla extract, cinnamon, nutmeg, and salt until well combined. Pour this mixture evenly over the bread cubes, making sure all pieces are soaked. Press down gently to help absorption.
3. Prepare the streusel topping
   In a medium bowl, combine the brown sugar, flour, cinnamon, and salt for the topping. Cut in the cold butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs. Cover and refrigerate until ready to use.
4. Refrigerate overnight
   Cover the baking dish with plastic wrap and refrigerate for at least 3 hours or overnight. This allows the bread to fully absorb the egg mixture.
5. Preheat and prepare for baking
   When ready to bake, preheat the oven to 350°F (175°C). Remove the casserole from the refrigerator and let it sit at room temperature for about 20 minutes. Sprinkle the streusel topping evenly over the soaked bread.
6. Bake the casserole
   Bake uncovered in the preheated oven for 45-50 minutes, or until the top is golden brown and the center is set but still slightly jiggly. If the top browns too quickly, cover loosely with aluminum foil.
7. Rest before serving
   Remove from the oven and let the casserole rest for 10 minutes before serving. This allows it to set completely and makes it easier to cut into portions.
8. Serve and garnish
   Serve warm with maple syrup, fresh berries, and a dusting of powdered sugar if desired. Cut into squares and enjoy!