Add 3 ¾ cups flour, yeast and salt to stand mixer.
Add the water and mix with the paddle attachment to combine. Switch to the dough hook and mix on medium 2 minutes. Let the dough rest 5 minutes in the bowl.
Mix 3 more minutes on medium, then add the remaining ¼ cup flour. Turn out and knead until smooth and elastic--about 5 to 7 minutes. Use only a tablespoon or two of extra flour while kneading.
Transfer to a greased bowl, turning to coat then cover and rise until doubled: 1 ½ hours or so.
Preheat the oven to 450. Place an 8x8 pan of hot water on the bottom rack.
Shape the dough into a 14-inch log. Rest the dough 30 minutes, then cut three or four diagonal slashes in the top and transfer quickly to the oven.
Bake 20-25 minutes until lightly golden brown. Transfer to a wire rack to cool.