The world's best gin and tonic infused with an Espresso Martini served as a Tom Collins.

Ingredients:

50 ml Hernö Gin (or whatever gin you prefer)
30 ml Coffee sugar layer *
20 ml of freshly squeezed lemon juice
60 ml tonic

Do this:

Shake all of these ingredients in a shaker with ice except tonic and strain up to a glass that will be filled with ice.

Top with tonic and mix with a spoon.

First GT, then Tom Collins also ends it with an Espresso Martini.

*Coffee Sugar Coat - Heat up equal parts of coffee and sugar. ex. 1 liter of coffee + 1 kg sugar = coffee sugar layer.