Lemon Fizz

Ingredients
750 ml gin
4 oz orange liqueur
4 lemons, peeled
4 oz lemon juice
24 oz club soda, chilled
1/2 cup sugar

Preparation
Muddle the lemon peels with sugar in a large bowl and let stand for 30 minutes. Add the lemon juice and stir until the sugar dissolves. Stir in gin and Grand Marnier. Fill halfway with ice and add club soda. Stir and serve!