Preheat your oven to 350°F (175°C) and grease a baking dish.
Prepare Blueberries:
In a bowl, toss blueberries with sugar and lemon juice. Pour into the prepared baking dish.
Make the Topping:
In a separate bowl, combine flour, sugar, baking powder, and salt. Stir in milk and melted butter (and optional cinnamon or vanilla) until smooth.
Assemble & Bake:
Spoon the batter over the blueberries in dollops.
Bake for 40–45 minutes, until the topping is golden and a toothpick inserted comes out clean.
Serve:
Let the cobbler cool slightly before serving. Enjoy warm, especially with a scoop of ice cream!
