01 - Combine warm water, sugar, and yeast in a large mixing bowl. Let stand until the mixture becomes foamy, approximately 5 minutes.
02 - Add flour, salt, and softened butter to the yeast mixture. Stir until a shaggy dough forms.
03 - Turn dough onto a lightly floured surface and knead by hand for 7 to 8 minutes, or use a stand mixer for 5 minutes, until the dough is smooth and elastic.
04 - Transfer dough to a lightly greased bowl, cover with a kitchen towel, and let rise in a warm spot until doubled in size, about 1 hour.
05 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
06 - Punch down the risen dough and divide into 12 equal portions. Roll each piece into a 7 to 8-inch rope and arrange on the prepared baking sheet.
07 - Cover shaped breadsticks loosely with a towel and let rise for 20 to 30 minutes until puffed.
08 - Bake for 12 to 15 minutes until the tops are lightly golden.
09 - While the breadsticks bake, whisk together melted butter, minced garlic, salt, and parsley. Brush the hot breadsticks generously with garlic butter immediately after removing from the oven. Serve warm.