Mound the flour on a clean cutting board or work surface. Using a fork, make a well in the center. Add eggs to the well. Using a fork and working from the outside of the mound in, gradually mix the flour into the egg mixture. Continue mixing in flour until dough forms. Work dough into a ball and then knead until dough is smooth and elastic, about 5 minutes. Wrap in plastic wrap and refrigerate while preparing Filling and Bechamel.