In large bowl, mix 2 cups of the flour, 1/3 cup granulated sugar, the salt and yeast. Add warm milk, 1/4 cup butter and egg. Beat with electric mixer on low speed 1 minute, scraping bowl frequently. Beat on medium speed 1 minute, scraping bowl frequently. Stir in enough remaining flour, 1/2 cup at a time, to make dough easy to handle.