Make the dressing by combining all ingredients thoroughly. Let it sit for at least 1 hour to let the flavors mingle.
Make the salad by preparing all the vegetables and setting them aside.
Cook the pasta in a large pot of well-salted water until al dente, per package instructions; drain.
Season the hot noodles by whisking the dressing, then pouring half of the vinaigrette over the warm noodles, and tossing to coat evenly; set aside until cooled completely.
Finish the salad once the noodles are completely cooled, and add the vegetables and peanuts.
Whisk the remaining dressing, then add to the noodles and vegetables; mix until well combined.