Ingredients
1 cup (packed) fresh mint leaves
2/3 cup sugar
2/3 cup fresh lime juice
2 cups golden rum
ice cubes
1 1/2 cup club soda
mint springs and lime slices for garnish

Method - The Procedure
Combine mint, sugar and lime juice in large bowl; mash well with a muddler. Let mixture stand at least 15 minutes and up to 2 hours.

Stir in rum.

Using ladle, divide mixture among tall glasses. Fill glasses almost to top with ice cubes then top each with 3 tablespoons of club soda. Garnish with a lime slice and sprig of mint. Serve with a straw.