Place the frozen chicken breasts on top of the broth. Season with salt and pepper.
Close the lid, select seal, and cook on high pressure for 12 minutes. The cook time depends on how thick your chicken breasts are. I try to select thinner cut breasts when I cook them in the instant pot to ensure they cook evenly. You may need to cook the chicken longer if you use thicker breasts.
Once the steam is naturally released, open the lid and remove the chicken from the instant pot. Season with salt, pepper, and any other seasonings you desire.
Slice the chicken and enjoy, or use as needed in other recipes.