This is a delicious treat, Deniz Börülcesi! A seaweed named glaswort when I translate to English through Tureng online Turkish/English dictionary.
You boil it until soft. Drain but save a little of the water. You then strip the fleshy green part from the branches. It is a bit of a tedious process but well worth it! Then combine the fleshy greens, the salty water from boiling, olive oil and lemon. Great side dish especially for fish but great on it's own too!
Also congrats to my darling little brother and dear friend on their wedding! Wish we were there and wish you all the love in the world! Brazil 2010 though!