Preheat oven to 375° F. Grease and lightly flour a 9-inch square baking pan.
Cream together until smooth:
¾ cup white sugar
¼ cup softened butter
1 large egg
Stir in:
½ cup milk
Sift together and stir in:
2 cups flour
2 teaspoons baking powder
½ teaspoon salt
Stir in:
2 cups blueberries
Spread the batter evenly in the pan.
Mix together and sprinkle on top:
½ cup sugar
1/3
cup flour
½ teaspoon cinnamon
¼ cup softened butter
Bake 45 to 50 minutes or until an inserted toothpick comes out clean.
Cut into 3-inch squares.