The Flexible Fridge
Place the butter in the Instant Pot, and then add the chicken. Set the Instant Pot to "Saute" and cook the chicken until it is browned on all sides. This will take about 5 minutes.
Next, add the rice and chicken broth. Stir everything together, making sure that all of the rice is submerged in the liquid.
Close the lid of the Instant Pot, and set it to "Manual".
Open the lid of the Instant Pot, and fluff the rice with a fork.