Add the warm water to a large bowl with the melted butter, sugar and yeast. Stir to help the yeast dissolve and let the mixture sit for 5 minutes, or until it becomes foamy on top.
2. Step
Add in the flour and salt (optional) to the yeast mixture. Use a mixing spoon to incorporate the wet and dry ingredients until it comes together into a sticky ball.
3. Step
Cover the dough with a towel and place in a warm part of your kitchen. Let rise for 1½ hours, or until it doubles in size.
4. Step
Remove the risen dough from the bowl and knead on the counter with extra flour until the dough becomes smooth on the surface and no longer sticky.
5. Step
Preheat the oven to 400°F/200°C.
6. Step
With a rolling pin, flatten the dough until it’s about a 7x12 inch (18x30 cm) rectangle, and slice into 12 strips. If you don’t have a rolling pin, you can cut the dough into 12 portions and roll each into 7 inch (18 cm) logs with your hands.
7. Step
Place the dough on parchment paper-lined baking sheets with cooking spray.
8. Step
Brush melted butter and sprinkle garlic salt on the dough.
9. Step
Bake the breadsticks for 15 minutes or until golden brown.
10. Step
When the breadsticks come out of the oven, serve immediately, or cool and store in the freezer for up to 6 months to eat at a later date.
