50ml A.H. Riise Danish Navy 40%
10-15ml 1838 Bitter
30ml lemon juice
15ml simple sirup 
15ml port wine 
Egg white

Pour rum, bitter, lemon juice, simple sirup and egg white in the shaker. Shake it and double strain in the lowball. Add some ice and slowly pour port wine on the top of the cocktail. Decorate with orange peel.