Make simple syrup

Combine 1 cup sugar & 2 cups water in a small sauce pan

Heat to boiling, stirring constantly until sugar is dissolved

Remove from heat, and add mint

Cool to room temperature

Pour lemon juice, simple syrup and lemon peel into a gallon jar

Screw on top & shake to blend

Unscrew lid, fill jar to top with water

Screw top back on and refrigerate overnight

Serve cold with a sprig of fresh mint and a lemon twist for garnish