These FFWD burgers were very good! That said, we all decided we do prefer plain burgers better (my husband's burgers are THE BEST) but these were fun to try. I did not use any cornichons (couldn't find) or pickles (I didn't realize until it was too late that the ones we had on hand were sweet pickles - yuck!). The Onion Marmalade was nice and easy to make. It just wasn't enough for four burgers. Double or triple the recipe would be best. As for the burgers themselves, we loved the tarragon hit; the capers and sun-dried tomatoes added moistness and maybe a little flavor; the parsley probably didn't add any flavor so I would probably not bother adding it next time. Also, we needed more Parmesan cheese. All in all, an interesting burger!
ETA: Some Doristas mentioned that this mixture could work as a meatloaf...I think that sounds great...will have to try :)