In a mixing bow, cream butter and sugar. Combine the eggs and milk. Combine flour, cornmeal, baking powder and salt,; add to creamed mixture alternately with egg mixture.
Pur into a greased 13x9x2 baking pan. Bake at 400 degrees F for 22-27 minutes or until a toothpick inserted near the center comes out clean. Cut into squares; serve warm