We rarely measure any of the ingredients for ricotta gnocchi. Start with the measurements above until you get a feel for it, then adjust the flour as needed. We usually purchase a package of ricotta that is a little shy of 2 cups (14-16 oz by weight), so we've erred on the side of less flour here. Depending on the moisture content of your ricotta it may take up to 1 cup. The goal is to get the dough to just come together. If you add too much flour, the gnocchi will be dense.