Season chicken thighs with salt and pepper, to taste.
Melt 2 tablespoons butter in a Dutch oven over medium heat. Add chicken, skin-side down, and sear both sides until golden brown, about 2-3 minutes per side; set aside.
Melt remaining tablespoon butter in the skillet. Add garlic, and cook, stirring frequently, until fragrant, about 1-2 minutes. Remove from heat.
Stir in brown sugar, honey, oregano, thyme and basil until well combined. Return chicken to the skillet.
Place into oven and roast until completely cooked through, reaching an internal temperature of 175 degrees F, about 25-30 minutes.
Serve immediately, garnished with parsley, if desired.