1 cups whole-milk ricotta (1 pound)
2 large eggs, lightly beaten
1 1/2 cups grated Parmigiano-Reggiano (3 ounces), divided
1/4 teaspoon grated nutmeg
1 1/4 cups all-purpose flour
1/2 stick unsalted butter
Stir together ricotta, eggs, 1 cup cheese, nutmeg, and 1/4 teaspoon each of salt and pepper. Add flour, stirring to form a soft, wet dough. Shape dough on a well-floured surface with lightly floured hands into 2 (1-inch-thick) ropes. Cut crosswise into 1-inch pieces with a lightly floured knife. Put in 1 layer on a lightly floured parchment-lined baking sheet. Cook gnocchi in 2 batches in a pasta pot of boiling salted water (3 tablespoons salt for 6 quarts water), adding a few at a time to pot and stirring occasionally, until cooked through (cut one in half to check), 3 to 4 minutes per batch. Lift out with a slotted spoon and drain in colander. Meanwhile, brown 4 ounces unsalted butter in saucepan. Sauté Gnocchi with 2 Tablespoons Brown butter season and serve.