Prep : Preheat the oven to 350℉. Spray a 9x13 baking dish and set aside.Blueberry Prep : Place the blueberries into a colander and run cold water over them to rinse them. Move the blueberries to a plate or bowl. Use paper towel to dab them dry (just so you don't add too much moisture in with the berries). In a mixing bowl, add the blueberries, sugar, lemon zest, and lemon juice Stir gently just until combined.
4 cups fresh blueberries, 1/4 cup granulated sugar, 1 tablespoon lemon zest, 1 tablespoon freshly squeezed lemon juice
In a separate lager mixing bowl, add the dry lemon cake mix, milk and melted butter. Whisk together until smooth and combined well.
1 box (15.25 oz) lemon cake mix, 1½ cups whole milk, 3 tablespoons butter
Stir half of the blueberry mixture into the lemon cake mix batter. Pour the batter into the prepared baking dish.
Sprinkle the remaining blueberry mixture over top the lemon cake mix batter.
Bake for 35-40 minutes or until the blueberries start to bubble and the edges of the cake are golden brown.
Remove the cobbler from the oven and let it rest for 10 minutes.
Serve warm with a scoop of vanilla ice cream on top!