01 - In a large mixing bowl, combine warm water (110°F), sugar, and instant yeast. Stir gently and let rest for 5 minutes until the mixture becomes foamy and bubbly.
02 - Add the all-purpose flour, salt, and softened butter to the yeast mixture. Stir until a shaggy dough begins to come together.
03 - Turn the dough onto a lightly floured surface and knead by hand for 7 to 8 minutes, or use a stand mixer with a dough hook for 5 minutes, until the dough is smooth, elastic, and springs back when pressed.
04 - Place the kneaded dough in a lightly greased bowl, cover with a clean kitchen towel or plastic wrap, and let rise in a warm, draft-free spot for approximately 1 hour, or until doubled in size.
05 - Preheat the oven to 400°F. Line a baking sheet with parchment paper and set aside.
06 - Gently punch down the risen dough to release air bubbles. Divide into 12 equal portions. Roll each piece into a rope approximately 7 to 8 inches long and arrange on the prepared baking sheet, spacing about 2 inches apart.
07 - Loosely cover the shaped breadsticks with a kitchen towel and allow them to rest and puff up for 20 to 30 minutes in a warm area.
08 - Bake in the preheated oven for 12 to 15 minutes, or until the tops are lightly golden and the breadsticks sound slightly hollow when tapped.
09 - While the breadsticks bake, whisk together the melted butter, minced garlic, salt, and chopped parsley. As soon as the breadsticks come out of the oven, brush them generously with the garlic butter mixture. Serve warm.