Rustic Ciabatta with Biga (Bread Machine Dough)

Ingredients

• ⅛ teaspoon instant or bread machine yeast
• ½ cup water, cool
• 1 cup unbleached all-purpose flour
• ¼ cup milk, cool
• 1½ teaspoon table or sea salt
• 2 cups unbleached all-purpose flour ((See notes about using bread flour.))
• ½ teaspoon instant or bread machine yeast
• flour, semolina, or cornmeal for flouring the board and your hands