In a bowl, mix warm water, yeast, and sugar. Let it sit for about 10 minutes, or until it becomes frothy.

In a separate bowl, combine flour and salt.

Gradually add the yeast mixture and melted butter to the flour mixture. Stir until a soft dough forms.

Knead the dough on a floured surface for about 5 minutes until it's smooth and elastic.

Place the dough in a greased bowl, cover it, and let it rise for about 1 hour, or until it's doubled in size.

Preheat your oven to 400°F (200°C).

Divide the dough into 12 equal pieces and roll them into breadstick shapes.

Place them on a baking sheet.

Bake the breadsticks for 12-15 minutes, or until they're golden brown.

In a saucepan, melt the ½ cup of unsalted butter and add garlic powder.

Brush the butter mixture over the warm breadsticks.

Sprinkle with salt, garlic powder, and grated Parmesan cheese.