01 -
Grease a 9x13-inch baking dish. Arrange the bread cubes evenly in the dish and sprinkle mixed berries on top.
02 -
In a large mixing bowl, whisk together eggs, milk, heavy cream, sugar, vanilla extract, and cinnamon.
03 -
Pour the custard mixture evenly over the bread and berries. Make sure all bread pieces are soaked. Cover and refrigerate for at least 2 hours or overnight.
04 -
In a small bowl, mix sugar, flour, cinnamon, and cold butter. Use a fork or pastry cutter to blend until the mixture becomes crumbly.
05 -
Preheat the oven to 350°F (175°C). Sprinkle the crumble topping over the casserole. Bake for 45–50 minutes or until the top is golden brown and the custard is fully set.
06 -
Let the casserole cool for 5 minutes. Dust with powdered sugar or drizzle with maple syrup before serving.