Ingredients:
60ml bourbon
30ml lime juice
2 tsp sugar
Few dashes of angostura bitters
Soda Water
Ice
Method:
Place lime juice, sugar, bourbon and bitters in a mixing glass. Stir to dissolve sugar. Add ice, and stir more to chill, and also make sure sugar has dissolved. Pour in to a Collins/tall glass filled with ice, and top with soda water.