1 1/2 oz of grand marnier orange liqueur (or orange liqueur)
2 oz of Vodka
2 1/2-3 oz of club soda (or clear soda)
2 1/2-3 oz of Orange Juice
Put Vodka and Grand Marnier in a shaker with ice. Shake and strain into collins glass. Add ice and fill with equal parts of OJ and Soda. Stir and granish with orange slice.