01 - Preheat oven to 400°F. Position the rack in the center.
02 - Pat the chicken thighs thoroughly dry with paper towels. Combine salt, pepper, smoked paprika, dried thyme, and dried basil in a small bowl, then season the chicken evenly on all sides.
03 - Melt butter in a large oven-safe skillet over medium-high heat. Place chicken thighs skin side down and sear for 3 to 4 minutes until the skin turns golden brown and crisp. Flip each piece and cook for an additional 2 minutes. Transfer the chicken to a plate and set aside.
04 - In the same skillet, sauté the chopped onion for 2 minutes until softened. Add the minced garlic and stir for 1 minute until fragrant.
05 - Pour in the chicken broth, scraping up any browned bits from the bottom of the pan. Stir in the heavy cream and Parmesan cheese, whisking gently until the sauce is smooth and begins to thicken slightly.
06 - Nestle the chicken thighs back into the skillet, skin side up. Spoon some of the cream sauce over the top. Transfer the skillet to the oven and bake uncovered for 25 to 30 minutes, until the chicken reaches an internal temperature of 165°F and the sauce is bubbling.
07 - Remove from the oven, sprinkle with chopped fresh parsley, and serve immediately while hot.