Remove the skin from the chicken and season it with salt and pepper on both sides.
Mix the chicken pieces with bbq sauce. if you don't want to make the bbq sauce yourself you're going to need 12 tbsp of store-bought bbq sauce.
Roast the chicken in a preheated oven at 180°C/350°F for 40 minutes. It doesn't matter if it's not completely cooked at this stage.
Remove the chicken from the oven. Remove the bones and shred the meat.
You will notice that the chicken has let go of liquids and mixed with the bbq sauce. Place the shredded chicken along with the juices and bbq sauce in a small pot and cook them over medium-low heat (important to keep the chicken soft) until it thickens.