She starts by mixing some flour and water in a bowl—just enough to make a small amount of paste, the consistency of spackle. She then uses a spatula or the back of a spoon to spread the paste across the line of damage in the crust. Next, she places the crust in the oven and bakes it just until the paste has dried. Your crust is now ready to be filled—and no one ever has to know that it wasn't perfect the first time around.