Biga (see Notes)

In a small bowl, whisk together the flour and yeast. With a silicone spatula or wooden spoon, stir in the water. Continue stirring for 3 to 5 minutes, or until very smooth. The biga should be tacky enough to cling slightly to your fingers.

Cover the bowl tightly with plastic wrap that has been lightly coated with nonstick cooking spray (or place it in a