01 - Lightly coat the insert of the slow cooker with olive oil to prevent sticking.
02 - Place the chicken breasts in a single, even layer across the bottom of the slow cooker insert.
03 - In a medium mixing bowl, combine the chopped onion, minced garlic, jalapeño, cilantro, lime juice, chicken broth, cumin, chili powder, salt, black pepper, and smoked paprika. Whisk until evenly blended.
04 - Pour the cilantro-lime mixture evenly over the chicken breasts, ensuring each piece is well coated.
05 - Cover the slow cooker and cook on the low setting for 4 to 5 hours, or until the chicken is fork-tender and easily shreds apart.
06 - Using two forks, shred the chicken directly in the slow cooker, tossing it in the accumulated juices so the meat absorbs the remaining sauce.
07 - Taste the shredded chicken and adjust salt or lime juice as needed. Serve hot, garnished with additional chopped cilantro and fresh lime wedges alongside warm tortillas, rice bowls, or salad greens.