Prepare the Berries: Preheat the oven to 375°F. Toss blueberries with sugar and flour in a bowl. Set aside.

Make the Dough: In another bowl, mix flour, salt, sugar, and baking powder. Cut in cold butter using a pastry blender or fork until the mixture resembles coarse crumbs. Stir in cream just until combined.

Assemble the Cobbler: Pour the berry mixture into a 1 1/2-quart baking dish. Roll out the dough to 1/2-inch thick and cut into rounds using a biscuit cutter or shape by hand. Place the dough rounds over the berries, leaving gaps for bubbling.

Bake: Place the baking dish on a rimmed baking sheet to catch any juices. Bake for 35-40 minutes until the topping is golden brown and the berry juices are thick and bubbling.

Serve: Let the cobbler cool slightly. Serve warm with heavy cream or vanilla ice cream.