01 -
Combine warm water, yeast and sugar in stand mixer bowl. Allow mixture to sit until foamy, approximately 5 minutes.
02 -
Add garlic salt, olive oil and sourdough discard to yeast mixture. Mix in flour using dough hook attachment until dough becomes smooth and elastic, about 4 minutes.
03 -
Transfer dough to a bowl and cover with plastic wrap. Allow to rise in a warm location for 20 minutes.
04 -
Roll dough into a rectangle on a floured surface. Transfer to a greased 13x18 baking sheet, pressing dough into corners.
05 -
Brush the dough surface with melted butter. Combine herbs and seasonings in a small bowl, then sprinkle evenly over the butter. Cover completely with both cheeses.
06 -
Allow dough to rise again for 15 minutes while preheating oven to 400°F (200°C).
07 -
Bake on lowest oven rack for 15-20 minutes until crispy. If needed, move to a higher rack for the final 2 minutes to brown the top.
08 -
Cut lengthwise, then into 12 strips each side for 24 breadsticks. Serve with marinara or ranch dipping sauce.