Garlic Butter Baked Chicken Thighs

Preheat oven to 425°. Pat chicken thighs dry with paper towel and season all over with salt and pepper. In a medium bowl stir together butter, garlic, lemon zest, and thyme. Rub butter mixture all over chicken thighs, including under the skin.   Place lemon rounds, potatoes, and chicken thighs in a 9"-x-13" baking dish and bake until thighs register 160°F on an instant-read thermometer, about 35 minutes. If you'd like the skin more crisp, broil on high for 1 to 2 minutes until golden.