Tom Collins - Gin Based Cocktail

Ingredients :

60 ml gin
juice of 1/2 lemon
1 tsp powdered sugar
carbonated water

Method :

Squeeze the juice of 1/2 lemon over a teaspoonful of powdered sugar in a 12 ounce glass.
Add gin and several ice cubes.
Fill glass with carbonated water and stir well.
Drop in a cherry and slice of lemon, cut half a slice of orange over the brim of the glass and serve with straws

Source: http://www.recipejunction.in/