To prepare the turducken boneless turkey, you'll need a turkey carcass that's been thawed and trimmed of all fat. To make the turkey stuffing, mix the following ingredients together: 1 1/2 tsp. kosher salt 1 teaspoon ground black pepper 1 tablespoon melted butter 1 pound rotisserie chicken breasts, skin-side down, cut into 1/4-inch-thick strips; season with salt and pepper. Place the skin side down in the roasting pan and roast in 375 degree F oven for 1 hour or until the internal temperature reaches 165 degrees F. Remove from the oven and allow to rest for 10 minutes before carving.