This is a simple tasty coffee cake, that has a texture almost like a muffin. Easy to make, and no odd ingredients except the blueberries.

Preheat oven to 350F.

Mix butter, sugar and egg. Add dry ingredients alternating with milk. Place in a greased 8x8x2 pan.

Mix topping ingredients together in a small bowl, and sprinkle on top.

Bake at 350 for 45 minutes.