Cook pasta until very al dente, 6 to 7 minutes in a large pot with ample boiling water and salt. Add peas and finish cooking, about 1 minute. Drain well and toss in butter and truffle vinaigrette (made by combining 1/2-ounce chopped black truffle, 1 1/2 ounces black truffle oil, 1/2-ounce champagne vinegar, and 1 small minced shallot) and chives. Check seasoning and serve immediately.
Recipe courtesy of Kerry Hefferman