Cup of Yum
1. Preheat the oven to 375°F.
2. Lightly grease a 9x13 inch ceramic baking dish.

Blueberry Filling

Cup of Yum
1. In a very large bowl stir together the blueberries, sugar, cinnamon, and lemon juice.
2. Stir in the cornstarch to coat the berries. 
3. Pour the berry mixture into the prepared pan.

Biscuit Layer

1. In a medium bowl whisk together the flour, 1/4 cup sugar, baking powder, and salt. 
2. In a large liquid measure cup or bowl, whisk together the melted butter, egg, milk, and vanilla extract. 
3. Make a well in the middle of the dry ingredients, then pour the wet ingredients into the well.
4. Stir the mixture together until combined - it will be thick. 
5. Section off pieces of the biscuit dough (I usually do about ¼ cup) and flatten into circles about ½ inch thick. Cover the blueberry filling with the circles of biscuit dough. It doesn't need to completely cover the top of the berries. 
6. Sprinkle the top with 1 tablespoon of sugar. 

Bake the Cobbler

1. Cover the top of the pan with aluminum foil, and bake for 20 minutes.
2. Remove the aluminum foil and continue baking for 20-25 minutes or until the top is golden brown and you can see the blueberries bubbling underneath.
3. Remove from the oven and let cool for 15 minutes before serving.