In a large bowl, combine warm water, sugar, and yeast. Allow it to sit for about 10 minutes until bubbly.

Add the flour, salt, and olive oil to the yeast mixture. Stir until it forms a rough dough, then transfer it onto a lightly floured surface.

Knead the dough for about 5-7 minutes until it becomes smooth and elastic.

Place the dough in a greased bowl, cover it with a clean cloth, and let it rise in a warm spot for about an hour or until it doubles in size.

After the first rise, punch down the dough. Divide it into equal portions (about 12) and roll each portion into a long, thin stick.

Place the breadsticks on a lined baking sheet and cover them again. Let them rise for another 30 minutes.

Preheat your oven to 375°F (190°C). Bake the breadsticks for 12-15 minutes or until they are lightly golden.

While the breadsticks are baking, melt the unsalted butter in a small bowl, and mix in the garlic powder. Once the breadsticks are out of the oven, brush the melted garlic butter generously over them.

Optionally, sprinkle with Parmesan cheese if desired, and serve immediately.