Ingredients
1/4 cup butter, softened3/4 cup sugar1 large egg, room temperature2 cups all-purpose flour2 teaspoons baking powder1/4 teaspoon salt1/2 cup 2% milk2 cups fresh blueberriesTOPPING:2/3 cup sugar1/2 cup all-purpose flour1/2 teaspoon ground cinnamon1/3 cup cold butter, cubedWhipped cream, optional
Preparation
Preheat oven to 375°. In a small bowl, cream butter and sugar until light and fluffy, 5-7 minutes. Add egg; beat well. In another bowl, combine the flour, baking powder and salt; add to creamed mixture alternately with milk, beating well after each addition. Fold in blueberries. Spread into greased 9-in. square baking pan.
For topping, in a small bowl, combine the sugar, flour and cinnamon; cut in butter until crumbly. Sprinkle over blueberry mixture.
Bake until a toothpick inserted in the center comes out clean, 40-45 minutes. Cool on a wire rack. If desired, serve with whipped cream and additional blueberries.