Blueberry Buckle

1/4 cup soft butter 1/2 teaspoon salt
2 cups flour 1/2 cup milk
1/2 cup sugar 1/4 cup butter
2 teaspoon baking powder 1/2 cup flour
2 cups fresh or frozen unsweetened 1/2 cup sugar
blueberries 1/2 teaspoon cinnamon
1 unbeaten egg

Butter the sides and bottom of 8 x 8 x 2 pan. Cream butter with sugar. Add egg and beat well. Add the milk alternately with the dry ingredients sifted together. Add berries and mix carefully; spread mixture evenly in pan. Top with mixture of butter, flour, sugar and cinnamon. Blend together with a fork and distribute evenly over cake dough. Bake at 350 degrees for 35 to 40 minutes. Serve with Cool Whip or whipped cream.