Generously season both sides of the chicken thighs with salt and pepper.
In a medium bowl, combine brown sugar, San-J 28% Less Sodium Tamari, and minced garlic. Whisk until sugar is dissolved.
Place chicken thighs into the marinate. Transfer to a large plastic bag. Let chicken marinate for 1-2 hours.
Preheat your oven to 450F degrees.
Place chicken into a 8×8 inch parchment lined baking dish. Pour the remainder of marinate over the chicken.
Bake chicken for 35-40 minutes.
Remove from oven, set broiler to high. Return chicken to the overn for 1-3 minutes under the broiler.
Garnish with fresh parsley, serve immediately.