- With the rack in the middle position, preheat the oven to 220 ºC (425 ºF). Butter and flour a 30 x 23-cm (12 x 9-inch) baking dish.
- In a large bowl, combine all the ingredients except for the mango and cinnamon. Pour into the prepared dish and evenly place the mango on top.
- Bake for 25 to 30 minutes or until the clafoutis has puffed up. Sprinkle with the cinnamon. Serve warm or at room temperature.