Activate the yeast by mixing warm water with sugar and sprinkling yeast on top. Let sit for 5 minutes until frothy.
In a large bowl, whisk together flour and salt.
Add melted butter and activated yeast mixture to dry ingredients; stir until combined.
Knead the dough on a floured surface for about 8 minutes until smooth and elastic.
Place in a greased bowl, cover, and let rise in a warm area for about one hour or until doubled in size.
Punch down the dough gently, shape it into a loaf, place in a greased pan, cover again, and let rise for an additional 30 minutes.
Preheat oven to 375°F (190°C) and bake for 25-30 minutes or until golden brown.
