The last time we were on Silhouette, 2019, I fancied trying the Spicy Mangotini at Sushi on 5. They were more than happy to oblige and even brought us some complimentary tasters of their dumplings to try. NB they weren't busy and this was over 3 years ago so things may have changed. Onboard again in 3 weeks time so will check it out.