In a bowl, combine butter, sofrito, the juice of sour orange, adobo, oregano, salt, and black pepper. Set aside.
Combine the chicken pieces with the mixture then place onto a roasting pan.
Cover the pan with foil and cook in a preheated oven at 375°F for 40 minutes.
Remove the foil, increase the temperature to 450°F, and cook uncovered for 30 minutes, basting halfway through until crispy and golden brown. Buen provecho!