Toss your pasta into a boiling pot of water. Cook al dente according to the directions on the package.
Sprinkle your peeled and deveined shrimp with Cajun seasoning.
In a separate pan, throw on your butter and some garlic, then the seasoned shrimp. After the shrimp are done, set them aside. Now add the heavy cream, chicken broth, and garlic for 4 minutes to make your sauce. Toss in the parmesan cheese to your sauce, and let the sauce cook for a minute or so over medium heat.
Add the cooked shrimp into the pan, then the cooked pasta. Mix well. Add parsley for garnish.