Preheat a griddle to medium heat, or place a skillet over medium heat, and spray with nonstick cooking spray.
In a shallow baking dish, whisk together the eggs, whole milk, heavy whipping cream, and pure vanilla extract until fully combined.
In a separate small mixing bowl, whisk together the granulated sugar and ground cinnamon. Add the cinnamon sugar mixture to the egg mixture and whisk until fully combined.
Soak each slice of bread in the egg mixture for 30 seconds on each side and allow any excess to drip off in the dish. Place the soaked bread on the griddle or skillet and cook until golden brown on each side.
Serve with maple syrup, fresh fruit, or your toppings of choice.