The ability to add new Game Center friends has been removed in iOS 10, but Star Chef will continue to support Game Center. Any Game Center friends you have added previously will still be accessible to you in Star Chef, and your profile data will still be saved on our servers with your Game Center information. Additionally, you can add new friends to Star Chef using Facebook.
 
All your Facebook friends who play Star Chef will be listed under Friends in the Chef's Circle. However, if you wish to add more friends, you can send friend requests to other players who are active on the official Facebook page of Star Chef at www.facebook.com/starchefgame
Once they accept your friend request, they will be listed under Friends
in your Chef's Circle.

Note: Users who are using iOS above 10.0 won't be able to save their game via Game Center.