Not sure about the potato bread part, but griddles with ridges and flat sides have been used a lot by me.
I have a Cuisinart Griddler with both those sides. Use flat for what ever! bacon, eggs, grill cheese, etc. ridged side for sausages, hot dogs, panini, skewers - almost anything you would do on a BBQ.
I also have a cast iron pan with the ridges, very handy, especially for searing quickly at a high heat that I don't feel I get with the griddler.
many uses I can't even think of right now.
I have a Cuisinart Griddler with both those sides. Use flat for what ever! bacon, eggs, grill cheese, etc. ridged side for sausages, hot dogs, panini, skewers - almost anything you would do on a BBQ.
I also have a cast iron pan with the ridges, very handy, especially for searing quickly at a high heat that I don't feel I get with the griddler.
many uses I can't even think of right now.