Grunt

Step 1
Preheat oven to 350 degrees F (175 degrees C).

Step 2
Combine blueberries, water, 1 cup white sugar, and 1 tablespoon butter in a saucepan; cook and stir over medium heat until heated through, about 5 minutes. Transfer blueberry mixture to a deep 1 1/2 to 2-quart baking dish.

Step 3
Beat 1/2 cup white sugar and 1 tablespoon butter together in a bowl until creamy. Sift flour, baking powder, and salt together in a separate bowl; stir into sugar-butter mixture. Add milk; stir until incorporated. Pour batter over blueberries.

Step 4
Bake in the preheated oven until lightly browned and bubbling, about 30 minutes.