Okay, I had these shrimp that were thawed.
I put some olive oil and butter in a pan and added chopped garlic, dried parsley, black pepper, rosemary and red chili flakes. Let that simmer a while.
Whoa... is there anything better than the odor of rosemary! Dang, I love that!
I added a pint of heavy cream and let it reduce until it was thick. In the meantime I cooked some pasta. When the cream mixture was thick, I added some freshly grated parmesan. Mmmm!In went the shrimp - for three or four minutes - you don't want to overcook them!