1 ounce premium mixing rum, such as Ten Cane
1 ounce orange-flavored liqueur, such as Grand Marnier
1 ounce store-bought eggnog
2 ounces champagne
1 cinnamon stick, for garnish
Combine the rum, orange-flavored liqueur and eggnog in a cocktail shaker filled with ice. Strain into a champagne flute and add the champagne. Garnish with a cinnamon stick.