Boil the pasta al dente and drain, then pat pasta dry with a paper towel *
Add the mayo, sour cream and all seasonings to the pasta and mix well.
Add the shredded chicken and 2/3rds of the the Parmesan and mix well.
Cut the bottom ends of the asparagus off (about an inch off of the ends and toss) and then cut the rest into bit size pieces. Blanch (boil for exactly two minutes) and then drain and immediately submerge pieces into a ice water bath and let sit for two minutes. Drain and pat dry.
Add the asparagus and sliced grapes into the salad and mix well.
Add any additional salt and pepper to your liking.
Chill for at least 2-3 hours and serve by adding the rest of the Parmesan to the top of the salad.
Notes
Adding a teaspoon of olive oil to the water when boiling will help to keep the pasta from sticking together when it’s drained and cooled.
Run cold water over your pasta and toss with ice cubes in the colander to get the pasta cold and it won’t take as long to “chill” your salad to eat.