In a large mixing bowl combine 1 cup flour, yeast, sugar, salt and butter. Mix with paddle attachment. Add the water and mix on medium speed for two minutes. Add 1 cup flour and beat on high speed for two minutes. Change attachments on your mixer to the dough hook. Add the remaining flour and beat an additional two minutes. Place dough in a greased bowl and cover to let rise for 1 hour. Stir dough down and turn out onto a floured board. Cut dough into 16 pieces. Shape into balls. Place on a sheet pan that has been dusted with cornmeal. Let rise, covered until double, approx. 1 hour. Bake rolls 400 degrees for 12 - 15 minutes.