Melt butter in a large-skillet over moderate heat. Then add the garlic and cook for a few seconds, or till aromatic.
Meanwhile, in a bowl, then whisk flour and thick cream till well blended, then put it in the pan.
Stir in the Italian seasoning, lemon zest, cayenne powder, sun dried tomatoes and chili flakes. Reduce the heat and simmer for 3-4 minutes, or till the sauce begins to thicken.
Then add the shrimp and cook till becomes pink and curled for 4-5 minutes. Remove from the heat and stir with basil.
Serve and enjoy! You can season with pepper and salt if desired.