01 - Preheat oven to 180°C (350°F). Grease a 24 cm pie dish or similar baking dish.
02 - In a mixing bowl, whisk together eggs, milk, granulated sugar, vanilla extract, and salt until the mixture is smooth.
03 - Gradually add all-purpose flour, whisking until the batter is well combined. Stir in finely chopped rosemary.
04 - Pour half of the prepared batter into the greased dish. Arrange apricot halves on top, cut side up.
05 - Gently pour the remaining batter over the arranged apricots.
06 - Transfer the dish to the oven and bake for 30–35 minutes, until puffed and golden brown.
07 - Allow the clafoutis to cool slightly before serving. Optionally dust with powdered sugar if desired.