To make the gnocchi. In a bowl, mix together the ricotta and egg. Add the cup of flour, the parmesan, and 1 teaspoon salt. Stir until just combined. If the dough feels wet, add a 1/2 cup of flour at a time until the dough can be formed into a ball. The dough should NOT be sticky. It should be floured enough on the outside that your hands won't stick to it.