Heat oven to 350°F. In large bowl, break up cookie dough. Stir or knead in all remaining bar ingredients until well blended. In ungreased 9-inch square pan, press dough evenly in bottom. Bake 23 to 27 minutes or until golden brown. Cool 30 minutes.
In small bowl, blend all glaze ingredients until smooth, adding enough milk for desired drizzling consistency. Drizzle over bars. Cool completely, about 45 minutes. For bars, cut into 4 rows by 4 rows. Cut each bar in half diagonally to make triangles.