Barnstormer

1 1/2 oz Canadian whisky
1/2 oz peppermint schnapps
1 tsp dark creme de cacao
1 tsp white creme de cacao
1/2 oz lemon juice

Pour whisky, peppermint schnapps, creme de cacao liqueurs and lemon juice into a cocktail shaker half-filled with ice cubes. Shake well, strain into an old-fashioned glass almost filled with ice cubes, and serve.