In a large bowl, dissolve sugar and yeast in warm water and allow to sit for 10 minutes, covered. Mixture should be frothy.
In the bowl of your stand mixer or medium-sized bowl, combine flour and salt.
Add yeast mixture and melted butter to flour mixture.
Mix with dough hook attachment on stand mixer or stir until fully combined.
Knead dough for a few minutes (about 7-8 minutes) just until dough is smooth and elastic.
Spray baking sheet with nonstick spray.
Pull off pieces of dough and roll out into strips. Remember these are going to double in size!
Cover the dough with plastic wrap sprayed with nonstick spray (so dough doesn't stick to it from the inside) or cover with a clean kitchen towel and put in a warm place to rise.
Once they have doubled in size (about an hour), preheat oven up to 400F degrees.
Once oven has reached temperature, take plastic wrap (or dish towel) off of breadsticks and put in the oven to bake.
While they are baking, make butter topping. Microwave butter until melted and add garlic powder and salt, stir until combined.
After 6 or 7 minutes of baking, brush the bread sticks with half the butter mixture.
Then continue to bake for another 6-7 minutes.
Immediately upon removal from the oven, brush the other half of the butter on the sticks.