Sourdough Baguettes

Ingredients (10)

• + 1 cup sourdough starter add to pantry
• + 1 ½ cups warm water add to pantry
• ✓ 1 tablespoon active dry yeast
• ✓ 5 cups all-purpose flour, or as needed, divided
• + 2 tablespoons white sugar add to pantry
• + 2 teaspoons salt add to pantry
• + ½ teaspoon baking soda add to pantry
• ✓ 2 tablespoons cornmeal, or as needed
• + cold water, as needed add to pantry
• + 1 tablespoon melted butter, or as needed, divided add to pantry