Preparing Braised Chicken with Mushrooms is straightforward if you follow these steps:

1. Prepare the Ingredients: Gather all the ingredients and chop the onion, garlic, and mushrooms.
2. Heat the Oil: In a large skillet or Dutch oven, heat the olive oil over medium-high heat.
3. Brown the Chicken: Season the chicken thighs with salt and pepper. Place them skin-side down in the hot oil and sear for about 5-7 minutes until golden brown. Flip and brown the other side for an additional 5 minutes.
4. Remove Chicken: Once browned, remove the chicken from the skillet and set aside on a plate.
5. Sauté Vegetables: In the same skillet, add the chopped onion and garlic. Sauté for about 2-3 minutes until softened.
6. Add Mushrooms: Stir in the sliced mushrooms and cook for another 5 minutes until they begin to release their moisture.
7. Deglaze the Pan: Pour in the white wine, scraping the bottom of the pan to release any brown bits. Allow it to simmer for about 3-5 minutes.
8. Add Broth and Herbs: Add the chicken broth, thyme, and rosemary to the skillet. Stir to combine.
9. Return Chicken to Skillet: Nestle the chicken thighs back into the skillet, skin-side up. Ensure they are partially submerged in the liquid.
10. Cover and Simmer: Cover the skillet and reduce the heat to low. Let it simmer for about 40 minutes until the chicken is cooked through and tender.
11. Check for Doneness: Use a meat thermometer to ensure the chicken reaches an internal temperature of 165°F (75°C).
12. Rest the Chicken: Once cooked, remove the chicken from the skillet and let it rest for about 10 minutes.
13. Thicken Sauce (Optional): If you prefer a thicker sauce, increase the heat and let it simmer uncovered for a few minutes until reduced to your liking.
14. Serve: Plate the chicken and spoon the mushroom sauce over the top. Garnish with chopped parsley.

These simple steps will guide you in creating this incredible dish effortlessly.