Whisk together the flour, baking powder and sugar.
Cut in the 6 tablespoons butter with a pastry blender, or use your fingers (I prefer this method), until the mixture is like sand.
Add the milk to the flour mixture and stir until just combined…the dough will be wet. Let rest in the fridge while you make the blueberry filling.
Blueberry Filling:
Mix together the blueberries, sugar, lemon juice and flour.
Add the blueberry mix to a 9×13 baking dish.
Putting it all together:
Using a spoon, scoop the cobbler topping onto the blueberry mixture in 2 tablespoon portions. Make sure to leave some spaces between the topping so that the berries can bubble through.
Bake for 45 minutes or until the topping is golden brown and the berries are bubbling through.
Once the cobbler is done baking, let it rest for about 10 minutes.