In the bottom of a slow cooker, add the sliced onion, garlic, ginger, turmeric, paprika, cumin, coriander, chicken broth, tomato paste, salt, and pepper. Mix to combine. Nestle in the chicken breasts, cover and cook on low for 6 to 8 hours, or on high for 4 hours.

Once the cook time is complete, transfer the chicken breasts to a cutting board, allow to cool slightly, and shred with two forks. Return the chicken back to the cooking liquid and toss to combine. Add in the lemon and orange zest and juice, cilantro, and olives. Stir to combine.

To serve, scoop cooked cauliflower rice or jasmine rice into bowls and ladle the chicken tagine mixture over top. Garnish with chopped pistachios and extra cilantro if desired.

In the Instant Pot, add the sliced onion, garlic, ginger, turmeric, paprika, cumin, coriander, chicken broth, tomato paste, salt, and pepper. Mix to combine. Nestle in the chicken breasts, place the lid back on the top, lock, and turn the vent to “sealed.” Using the manual setting, set the cook time to 20 minutes.

Once the cook time is complete, allow the pressure to naturally release for about 10 minutes. Turn the vent to “venting” to release the rest of the steam, and open the lid. Transfer the chicken breasts to a cutting board, allow to cool slightly, and shred with two forks. Return the chicken back to the cooking liquid and toss to combine. Add in the lemon and orange zest and juice, cilantro, and olives. Stir to combine.

To serve, scoop cooked cauliflower rice or jasmine rice into bowls and ladle the chicken tagine mixture over top. Garnish with chopped pistachios and extra cilantro if desired.