Dissolve the yeast in 1 cup warm water.
Add the melted butter and stir.
Add the salt to the flour, and add in 1/2 cup increments while mixing.
Knead by hand or mixer for about 10 minutes.
Let rise in a warm place until doubled, about an hour.
Punch down, and shape into loaf, and using a sharp knife, slice carefully down the middle of the loaf, about 1/4″ down.
I sprinkle the bottom of the baking sheet with a bit of cornmeal to help keep it from sticking, as well as add an interesting crunchy factor.
Allow to rise 30 more minutes and bake in oven at 350 degrees for 30 minutes.
You will want to put the bread in a cold oven, set the temp, and then the timer. As the oven warms, it gives the yeast a bit of help rising and this is called "spring".