Preheat the oven to 400°F.
In a large oven-safe skillet, heat the olive oil over medium-high heat.
Season the chicken thighs with salt, pepper, garlic powder, thyme, and rosemary.
Place the chicken skin-side down in the skillet and sear for about 5-7 minutes until the skin is golden brown.
Flip the chicken thighs over and pour in the white wine and chicken broth.
Bring the mixture to a simmer, then transfer the skillet to the preheated oven.
Roast for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F.
Remove the skillet from the oven and transfer the chicken to a plate.
Place the skillet back on the stove over medium heat.
Stir in the heavy cream and Dijon mustard, scraping up any browned bits from the bottom of the skillet.
Simmer for about 5 minutes until the sauce thickens slightly.
Return the chicken to the skillet, spooning the sauce over the top.
Garnish with fresh parsley before serving.