1. Bring a large pan of salted water to a boil.
2. While the water is heating up, mix together the ricotta, Parmesan, flour and salt in a mixing bowl with a wooden spoon.
3. Lightly flour your hands and roll out the dough into thin sausages about ¼″ thick. Be careful not to add too much flour on your hands or the surface of the counter or the gnocchi will get tough.
4. Cut gnocchi with a sharp knife into pieces about ¾″ long. Drop into boiling water and cook for about 45 seconds, or until they float to the surface. Remove from the water with a slotted spoon and place in serving bowls. Serve with pesto, tomato sauce or browned butter sauce.