Instant Pot Chicken Fajitas

Make today's dinner a breeze with a little help from The Instant Pot®. All the elements of these fajitas combine in an instant to make the chicken incredibly juicy and the vegetables perfectly cooked. Sprinkle these fajitas with all your favorite fillings to make a light weeknight meal that everyone will love.
Whisk together the lime juice, chili powder, cumin, paprika, brown sugar, salt, black pepper, and 2 tablespoons of oil in a small bowl. Set aside 2 tablespoons of the marinade in a small bowl; pour the remaining marinade into a large zippered plastic bag. Put the chicken in the bag, close the bag and shake well to coat. Place in the refrigerator and leave to marinate for 30 minutes.In the meantime, select the ROASTING mode in a programmable high-pressure slow cooker (for example, in a fast-food slow cooker). (Cooking times, instructions, and settings may vary depending on the make or model of cooker.) Select the high-heat mode; add 1 tablespoon of oil to the pan and let it warm up for 2-3 minutes. Add the bell pepper, onion, and remaining 2 tablespoons of marinade; cook, stirring frequently, until soft and crisp and lightly browned, about 6 minutes. Transfer the vegetables to a plate; cover to keep warm. Do not wipe the stove clean.Add the remaining 1 tablespoon of oil to the skillet on HIGH power. Remove the chicken from the marinade; pour the marinade into the bag and add the chicken to the slow cooker. Cook until they are lightly browned, 3-4 minutes on each side. Click CANCEL.Add the broth and marinade bags to the chicken in the slow cooker, scraping the browned pieces off the bottom of the slow cooker. Cover the stove with a lid and lock it in place. Turn the steam release knob to the SEALING position. Select the MANUAL /PRESSURE cooking mode. Cook at HIGH pressure for 4 minutes. (It will take 8 to 10 minutes for the stove to reach pressure before cooking.)At the end of the cooking cycle, carefully turn the steam release knob to the exhaust position and allow the steam to escape completely (the float valve will lower). (Cooking will take 1-2 minutes.) Remove the lid from the stove.Remove chicken from heat; allow to cool slightly, about 5 minutes. Cut into 1/2-inch thick strips. Return the chicken to the stove and stir to coat in the liquid. Remove chicken from oven; drain remaining liquid. Place the chicken, vegetables, and warmed tortillas on a platter. Serve with the desired fillings.