In a medium-sized mixing bowl, combine the orange juice (1), lime juice (2), chicken broth (½ cup), minced garlic (5), onion (1), chipotles in adobo (4), and kosher salt (1). Whisk until combined.
Place the chicken breasts (2 pounds) in the Instant Pot. Pour the carnitas sauce all over the chicken.
Secure the lid on the Instant Pot and close the valve. Press the pressure cook button and set the cooking time to 15 minutes on high pressure.
While it cooks, prepare the toppings. Heat the tortillas, and slice the jalapenos and avocados. Set aside.
Once the cooking time is up, quickly release the pressure.
Take the chicken out of the Instant Pot and shred.
Preheat the oven to broil.
Add the shredded chicken to a sheet pan with ¼ cup of the carnitas juices from the Instant Pot. Broil the chicken on high for 5 minutes.
Remove from the oven and pour another ¼ cup of juice over the chicken. Place it back under the broiler for an additional 10 minutes, or until the chicken is crispy.
Remove the chicken from the broiler and toss in any remaining carnitas juice and a squeeze of lime.
Serve the chicken carnitas in tortillas, garnished with cilantro, jalapenos, avocado slices, and extra adobo sauce.
Notes
Serve: with extra limes for an extra squeeze of fresh lime juice and your favorite toppings.