Lightly spray the bottom of the Instant Pot with cooking spray. Place the chicken breasts in the bottom of the Instant Pot. Pour in the chicken broth which will help create steam for pressure cooking.
4 boneless, skinless chicken breasts, 1 cup chicken broth
Sprinkle the dried seasonings evenly over top the chicken breasts.
1 teaspoon kosher salt, 1 teaspoon garlic powder, 1 teaspoon onion powder, 1 teaspoon smoked paprika, 1 teaspoon chili powder, ½ teaspoon black pepper
Pour the BBQ sauce directly over the seasoned chicken, then gently spread it out so all the chicken is coated.
2 cups BBQ sauce
Sprinkle the light brown sugar and apple cider vinegar on top. Do not stir.
2 tablespoons light brown sugar, 2 teaspoons apple cider vinegar
Lock the lid on the Instant Pot, set the valve to sealing, and cook on manual high pressure for 12 minutes.
Allow the pressure to release naturally for 5 minutes (meaning leave it in the sealing position after the cook time for a natural release), then carefully switch the valve to quick release the remaining pressure and to open the pot.
Transfer the cooked chicken breasts to a large bowl or cutting board, and use two forks to shred it. You can also use an electric hand mixer to shred the chicken (I love doing this!)
Turn the instant pot to sauté mode, then simmer the sauce for 3-4 minutes to slightly thicken, stirring occasionally to prevent burning.
Return the shredded chicken to the pot and toss it in the warm bbq sauce until fully coated and glossy.
Spoon the saucy bbq shredded chicken onto warmed buns, over rice, or on baked potatoes.