*Use 3 lbs. of boneless, skinless chicken breasts, which was about three very large breasts for me. Weight is more reliable than the number of breasts, so you may need more than three if your store sells smaller pieces. You can also use 3 lbs. skinless, boneless chicken thighs. Make sure frozen chicken is fully thawed before adding it to the slow cooker and it reaches a safe internal temperature of at least 165°F once cooked.**I recommend using unsalted butter, so this dish isn’t too salty. You can always add more salt after it’s cooked, if needed.Salt levels can vary: Seasoning packet brands vary in sodium, so check the labels and choose lower-sodium options if needed. Stick with unsalted butter, then taste the finished chicken before adding any extra salt.