Pat chicken thighs dry and season both sides with Italian seasoning, garlic powder, salt, and pepper.
Heat olive oil over medium heat. Sear chicken skin-side down for 6–8 minutes until golden and crispy. Flip and cook another 5–6 minutes. Remove and set aside.
Melt butter in the same skillet. Add sliced garlic and sauté 1–2 minutes until fragrant.
Whisk in flour to form a roux. Slowly pour in chicken broth, scraping browned bits from the pan.
Stir in heavy cream, Parmesan, salt, pepper, and crushed red pepper flakes. Simmer 3–4 minutes until thickened.
Return chicken to skillet. Spoon sauce over top and simmer 5–8 minutes, until chicken reaches 165°F internal temperature.
Garnish with chopped parsley and serve warm with lemon wedges.
