Remove the pit from the cherries with a cherry pitter.
Sprinkle the caster sugar evenly over the buttered dish. Tilt the dish to cover the sides and bottom evenly, then shake out any extra.
In a mixing bowl, whisk together eggs, caster sugar, salt, and vanilla extra until well combined and slightly frothy.
Sift in the plain flour and whisk until smooth and free of lumps.
Gradually add the whole milk, whipping cream, and melted butter, whisking until the batter is smooth.
Brush a 23 cm (9-inch) baking dish with melted butter.
Arrange the pitted cherries evenly in the prepared baking dish.
Pour the batter over the cherries, making sure they are well distributed.
Place the dish in the preheated oven at 180°C (350°F) (standard oven) or 160°C / 320°F (fan forced / convection) and bake for 35-40 minutes, or until the clafoutis is puffed, golden brown, and set in the center. A toothpick inserted into the center should come out clean.
Allow the clafoutis to cool slightly before serving. It can be enjoyed warm or at room temperature.
Notes
Serve warm or at room temperature: Clafoutis tastes best when it's fresh out of the oven, or within a few hours of baking. Enjoy it while it's warm!Storage: If you have any leftovers, store them in the fridge. Experiment with flavors: Traditional clafoutis is made with cherries, but you can try other fruits like berries, plums, or apricots. Just remember that the fruit's moisture might change the baking time a bit.