Add the chicken breasts straight into your Instant Pot. You wanna lay them flat so they cook evenly.
Pour in the chicken broth or water until it just covers that bottom surface — this broth depth kinda cooks the chicken gently.
Sprinkle salt, ground cumin, chili powder, and garlic powder evenly on the chicken breasts so the flavors soak right in.
Open the can of fire roasted tomatoes and spread the tomatoes on top of your seasoned chicken. That liquid helps keep things juicy too.
Secure the lid on your Instant Pot. Make sure the valve is set to sealing. Set it to high pressure for 15 minutes and start the countdown.
Once the cooking time's up, allow the pressure to release naturally for 10 minutes. Then you do a quick release to let the rest of the steam out safely. When the valve stops hissin', open the lid.
Carefully take out those tender chicken breasts and shred ’em up with two forks you probably got handy on the counter.
Put the shredded chicken back into the pot and give it a good stir with all that juicy broth and spices still inside. This kinda keeps it moist and flavorful.
Serve warm on corn or flour tortillas and layer up with avocado, tomatoes, cheese, cilantro, and sour cream however you like.
Notes
Top with your favorite taco fixings, like shredded cheese, cilantro, onions, salsa, or hot sauce.