To make the sauce, in a small bowl, combine the ingredients in a bowl and whisk until smooth. Please note that this sauce will separate if it sits too long or cools. To combine it again, gently warm and whisk until well mixed.
Preheat oven to 375 degrees F (190 degrees C). Place chicken in a 9x13 inch baking dish. Pour sauce over chicken and cover with foil.
Bake at 375 degrees F (190 degrees C) for 45 minutes, remove foil, and bake for 15 more minutes.