Pour your tonic water into a container and place this in the freezer until your tonic water is completely frozen. Then, put some sugar in a shallow dish, and smear the edge of a martini glass with a little lemon juice. Roll the lemon juice-smeared edge into your sugar dish, so that the sugar sticks to it, then put the glass into the freezer.
Take your frozen tonic water out, and crush it with a spoon. Put this in your (now chilled) martini glass . Pour the lemon juice and gin over the top.
– Gruszka z Fartuszka, creator of gruszkazfartuszka.pl