Activate Yeast:

In a large bowl, combine the warm water and sugar. Sprinkle the yeast over the top and let it sit for 5–10 minutes, until foamy.

Mix the Dough:

Add the salt, melted butter, and 2 cups of flour to the yeast mixture. Stir with a wooden spoon or dough hook. Add the remaining flour gradually, mixing until a soft dough forms.

Knead:

Turn the dough onto a floured surface and knead for 8–10 minutes until smooth and elastic. Add small amounts of flour as needed to prevent sticking.

First Rise:

Place the dough in a greased bowl. Cover with a clean towel or plastic wrap and let rise in a warm spot for about 1 hour, or until doubled in size.

Shape and Second Rise:

Punch down the dough, shape it into a log, and place in a greased 9x5-inch loaf pan. Cover and let it rise again for about 30 minutes, or until puffed.

Bake:

Preheat the oven to 350°F (175°C). Bake for 30–35 minutes, or until the top is golden and the loaf sounds hollow when tapped.

Cool and Serve:

Let the bread rest in the pan for 5 minutes, then transfer to a wire rack. For extra softness and shine, brush the top with melted butter while warm.