Season the chicken. Pat the thighs dry. Sprinkle with salt, pepper, and smoked paprika. This quick step boosts flavor and helps the sauce shine.
Whisk the sauce base. In a bowl or directly in your cooking vessel, combine chicken broth, heavy cream, Dijon, lemon juice, garlic, Italian seasoning, and red pepper flakes.
If using cream cheese, whisk it in until mostly smooth. A few tiny specks are fine.
Dump and arrange. Pour the sauce into a large skillet, Dutch oven, or baking dish. Nestle the chicken thighs into the sauce in a single layer.
Drizzle olive oil or dot butter on top.
Choose your method. Oven (easy and hands-off): Bake at 400°F (200°C) for 25–35 minutes for boneless thighs or 35–45 minutes for bone-in, until the chicken reaches 165°F (74°C) and the sauce is bubbling.
Stovetop (fast and flexible): Bring to a simmer over medium, cover, and cook 18–25 minutes, turning once. Uncover to reduce the sauce slightly.
Slow cooker (true dump and go): Cook on Low for 4–5 hours or High for 2–3 hours. Stir in the cream and cream cheese during the last 30 minutes to avoid curdling.
Finish with herbs. Stir in the fresh herbs and taste.
Add a pinch of salt or an extra squeeze of lemon if needed. The acidity brightens the cream.
Rest and serve. Let the chicken sit 5 minutes so the juices settle and the sauce thickens slightly. Serve over rice, mashed potatoes, pasta, or crusty bread with a green side.