Cook fettuccine in salted boiling water until al dente. Drain and set aside.
In a bowl, whisk the paprika, garlic powder, onion powder, oregano, thyme, cayenne pepper, black pepper, and salt until combined.
Dry the chicken breasts by patting them gently with paper towel. Apply the seasoning mix to both sides.
Heat the olive oil in a large skillet over medium-high heat. Cook the chicken for about 5-6 minutes on each side, until blackened and cooked through. Remove and slice into strips.
Melt butter in the skillet over medium heat. Add minced garlic and cook for 1-2 minutes until fragrant.
Stir in the heavy cream and bring to a simmer. Cook for 3-4 minutes, stirring often.
Slowly incorporate the Parmesan cheese, stirring until it melts and becomes smooth. Adjust seasoning with salt and pepper to your liking.
Add the cooked pasta to the sauce and toss to coat.
Add the sliced chicken on top and serve warm. Garnish with fresh parsley.