Tagliatelle with Walnut Pesto
This uncooked dressing, enriched with ricotta and butter, is delicious and quite different from the herb-based pestos I’ve found in other regions. You can blend it together in a bowl while the pasta water is heating up and have a distinctive pasta appetizer or main course in minutes. To retain its vibrant, fresh flavors, it is important not to cook the pesto, just toss it with the tagliatelle and serve.