Does "morning" make AM redundant?

In this case, no. If it had been written as ...6 AM in the morning, then, it would have.

Interesting case. It seems to me that the use of AM/PM are often used in the same sentence with "morning" or "evening" and yet these instances don't strike us as examples of redundancy. I'm not sure why that's so.

bothers me more than what you are asking about

in this example, I'd say it is a matter of style

so - not redundnt

The a.m. thing is insignificant, as others have pointed out. I wish to emphasize what ehbeth said. "The ingredients for their famous East Javan ayam penyet is personally prepared by their owner" is jarringly wrong. It should read: "The ingredients for their famous East Javan ayam penyet are personally prepared by their owner . . ."