1. In a mixing bowl, combine cornmeal and warm water. Let it sit for 10 minutes.
2. Stir in molasses, melted butter, and salt.
3. Add flour and yeast. Mix until a dough forms.
4. Knead the dough for about 10 minutes until smooth.
5. Place dough in a greased bowl, cover, and let rise until doubled in size, about 1 hour.
6. Preheat oven to 375°F (190°C).
7. Punch down the dough, shape into a loaf, and place in a greased loaf pan.
8. Bake for 40 minutes or until golden brown.
9. Let cool before slicing.