Begin by patting the chicken thighs dry with paper towels to ensure a crispy skin. Season both sides generously with salt and freshly ground pepper.
In a large, heavy-bottom skillet, heat the olive oil over medium-high heat. Once the oil is shimmering, carefully place the chicken thighs in the skillet, skin-side down. Sear for approximately 5-7 minutes, or until the skin is golden brown and crispy. Flip the chicken thighs and cook for an additional 5 minutes on the other side. Once seared, remove the chicken from the skillet and set aside on a plate.
In the same skillet, add the finely chopped onion and sauté for about 2-3 minutes until translucent and softened. Next, add the minced garlic, cooking for another minute until it becomes fragrant and aromatic.
Add the sliced cremini mushrooms to the skillet, stirring them into the onion and garlic mixture. Sauté for about 5 minutes, or until the mushrooms are beautifully browned and their moisture has mostly evaporated, creating a rich flavor.
Carefully pour in the chicken broth, using a wooden spoon to scrape up any delicious brown bits stuck to the bottom of the skillet. Stir in the heavy cream, followed by the dried thyme and rosemary. Allow the mixture to come to a gentle simmer, letting the flavors mingle.
Return the seared chicken thighs to the skillet, positioning them skin-side up. Spoon some of the creamy sauce over the chicken. Cover the skillet with a lid, reduce the heat to low, and let it simmer for 20-25 minutes. Cook until the chicken is thoroughly cooked, reaching an internal temperature of 165°F (75°C).
Once the chicken is cooked, taste the sauce and adjust the seasoning with additional salt and freshly ground pepper if desired.
Notes
Serve over mashed potatoes or rice for a complete meal.