I got this out of a cookbook my Nana(maternal grandmother) sent me for Christmas this year. It sounded yummy so when it was my night to cook for myself and my neighbors I decided to try it. I was a bit iffy about it after I cooked it because I don't like runny pasta sauce. But I wasn't disappointed! There wasn't any left!
In large deep skillet heat oil and half the butter over med-high heat. Dust shrimp evenly with Cajun seasoning and add to pan. Cook shrimp turning once, until just opaque and cooked through about 3 minutes. Transfer to a plate.
Cook pasta in salted boiling water according to package directions. Drain well
As the pasta cooks, melt remaining butter in shrimp pan. Add garlic and cook for 30 sec. Add broth and hot sauce. Bring to a simmer stir up any brown bits from the pan. Turn off heat and return shrimp to pan.
Toss the pasta in the shrimp sauce with 1/2 cup of scallions. Serve garnished with scallions (if you want). Top with parmesan cheese!