u/SouthernBelleOfNone

For the filling... 4 cups blueberries (I used frozen) 1/2 cup sugar, 1 tbsp cornstarch, 1 tbsp lemon juice.

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For the breading... 1 cup AP flour, 1 cup sugar, 1 tsp baking powder, pinch of salt, 3/4 cup of milk. I stick of butter.

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Preheat oven to 350°, melt stick of butter in casserole dish. Combine all breading ingredients then add to casserole (do not stir into butter) then combine all topping mix and spoon evenly over batter. Bake about 45min or until browned