Step 1
Make the simple syrup by combing sugar and water in a small saucepan. Heat on low until the sugar dissolves, then let it cool.
Step 2
In a tall glass, using a muddler, muddle the mint leaves, simple syrup and lime juice.
Step 3
Pour the white rum and peach nectar into the glass. Fill the glass with ice. Pour the soda water over the top and stir.