Check out this jammy release from Manchester Gin, built upon the original delicious tipple and infused with blackberries! The wonderful colour may have given it away, but a third of each bottle is blackberry juice, though it still manages to weigh in at 40% ABV. Elderflower tonic ought to work well with this one.
Tasting Note by The Chaps at Master of Malt
Unmistakable blackberry straight up, supported by juniper and some citrus in there too.