Name: Cosi Flatbread
Prep time: 300 min
Cook time: 25 min
Total time: 325 min
Yield: 12
Ingredients: 1 1/4 - ounce packet active dry yeast; 1 pinch sugar; 3 1/2 cups bread flour (, plus more for dusting); 2 teaspoons Kosher salt; 2 tablespoons extra-virgin olive oil; more oil for brushing the pan; 2 tablespoons butter (, melted)