01 -
Mix warm water, yeast and sugar in stand mixer bowl. Let sit until foamy, about 5 minutes.
02 -
Add garlic salt, oil and sourdough discard. Mix in flour with dough hook until smooth and elastic, about 4 minutes.
03 -
Place dough in bowl, cover with plastic wrap. Let rise in warm spot for 20 minutes.
04 -
Roll dough into rectangle on floured surface. Transfer to greased 13x18 baking sheet, pressing into corners.
05 -
Brush with melted butter. Mix herbs and seasonings, sprinkle over top. Cover with both cheeses.
06 -
Let dough rise again for 15 minutes while preheating oven to 400°F.
07 -
Bake on lowest rack 15-20 minutes until crispy. Move to higher rack last 2 minutes to brown top if needed.
08 -
Cut lengthwise, then into 12 strips each side for 24 breadsticks. Serve with marinara or ranch.