Is it possible to turn and safely land an aircraft with a malfunctioning rudder?
If the rudder is jammed in the neutral position (as stated in your question), then landing is easy. You will just land using ordinary techniques. The plane may feel sloppy, and passengers sitting at the back will complain about feeling dizzy, but the aircraft is easily controllable and landing would not be any problem.

Now things are different when the rudder is jammed to one side, for example in American Airlines Flight 96. The crew faced major controlling issues with a full right rudder, engine failure and very high sink rate. But even then, the pilots managed to land successfully.