Tortelloni with Spinach and Ricotta - Lidia

Ingredients

• For the dough:
• 4 cups flour
• 6 eggs, beaten
• ½ teaspoon salt
• ½ teaspoon olive oil
• For the Stuffing:
• 1 pound ricotta cheese
• ½ pound salted ricotta
• ½ cup grated Parmigiano
• 1 egg
• ½ cup cooked and finely minced Swiss chard or spinach
• 1 teaspoon salt
• 1 teaspoon freshly ground pepper
• For the Sauce:
• 1 cup unsalted butter
• 1 ½ cups heavy cream
• Freshly ground pepper to taste