Thaw dip according to package instructions. 2 to 3 minutes before the end of cooking, add the asparagus. Reserving 1/2 cup (125 ml) of cooking water, drain and return to the pot.
Add the cream of leek and chicken, cooked chicken and reserved cooking water.
Reheat over medium, add basil and sauce.
Sprinkle with hot pepper flakes and Parmesan, and serve.