How to make the Blue Jeans – Inventor – Adrian Frigioiu I love cocktails having a blue color :), so I use Blue Curacao in my experiments. This one was a success among my friends. Thinking about a name for it I came with BLUE JEANS (Blue Curacao and Gin).Into a Big Tumbler Glass put 5 – 6 Ice Cubes and a few thin slIces of Lemon. Pour the Lemon Juice squeezed from a half of a Lemon (~30ml), the Gin and the Tonic Water over the Ice in the glass. Mix everything for a few seconds. Bring the glass to the person who will drink it and pour the Blue Curacao into the glass… for effect Enjoy!