Mix the seasoning: In a small bowl, stir together the salt, onion powder, thyme, paprika, black pepper, and garlic powder.
Prep the chicken: Place the chicken breasts in the bottom of your slow cooker. Drizzle with olive oil and sprinkle the seasoning mix evenly over the chicken.
Add broth: Pour the chicken broth around (not directly on top of) the chicken to keep it juicy without rinsing off the seasoning.
Cook: Cover and cook on low for 3–4 hours or high for 1.5–2.5 hours, until the chicken is cooked through and tender (internal temp should reach 165°F).
Serve or shred: Serve whole with your favorite sides or shred for salads, bowls, wraps, or meal prep!
