Fresh thyme is key in this recipe. I used about 5 sprigs of snipped fresh thyme, and also a couple of sprigs more for garnish, on top of chicken thighs and mushrooms:

How to cook bone-in, skin-on chicken thighs:
Start by browning the chicken thighs in a large skillet, then bake them in the oven, for about 20 minutes until completely cooked through.

How to make Creamy Bacon Mushroom Thyme Sauce:
In the mean time, while the chicken thighs bake, start making the sauce by cooking the mushrooms and combining them with the chopped cooked bacon: