Heat your oven to 350°F (175°C) and lightly oil a sizeable oven-safe dish.
Arrange slices of French bread in the baking dish in a tight, flat layer.
Combine eggs, milk, cream, sugar, vanilla essence, cinnamon, nutmeg, and a small amount of salt in a bowl.
Evenly distribute this mixture over the bread in the dish.
Let the dish rest for 10 minutes, giving the bread time to soak up the mixture.
Wrap the dish in aluminum foil and bake for 30 minutes.
Afterward, remove the foil and continue baking for an additional 20-25 minutes until the top turns a rich golden color.
Let the casserole cool slightly before serving.
Dust with powdered sugar, drizzle with maple syrup and garnish with fresh berries.