01 - Mound flour on a clean surface and create a well in the center. Add eggs and salt to the well. Gradually incorporate flour into eggs using a fork, then knead until a smooth dough forms, adding water if necessary. Wrap dough in plastic and allow to rest for 30 minutes.
02 - In a mixing bowl, combine pumpkin purée, ricotta, grated Parmesan, egg yolk, nutmeg, salt, and black pepper. Stir thoroughly until smooth. Set aside until needed.
03 - Divide rested dough in half. Roll each section into thin sheets approximately 1/16 inch thick, using a rolling pin or pasta machine. Spoon teaspoons of pumpkin filling 2 inches apart along one sheet. Brush edges with water, cover with second sheet, and press to seal around filling. Cut into squares using a pasta cutter or knife. Ensure edges are firmly sealed.
04 - Bring a large pot of salted water to a gentle boil. Lower ravioli into water in batches, cooking for 3 to 4 minutes or until they float. Remove each batch with a slotted spoon.
05 - In a large skillet, melt butter over medium heat. Add sage leaves and lightly smashed garlic. Cook until butter turns golden and aromatic, about 2 to 3 minutes. Remove garlic from sauce.
06 - Toss cooked ravioli gently in warm sage butter sauce. Serve immediately, garnished with extra grated Parmesan and fresh black pepper.