That Black Ciabatta

We went to Starbucks after a day of shopping. I think this was 3 months ago. I saw this black ciabatta on the display and got interested. I asked my husband to order this for me. I think the filling was tuna and cheese. I liked it but the bread was too tough. It was a bit hard to bite into as it hurts my hard palate. I was only able to finish half of the sandwich. It also had a bit of bitter taste which was okay with me. The filling was the same as other Starbucks sandwiches. I would probably order this again if it becomes available.