Make a Swiss meringue: put the egg whites and sugar in a mixing bowl in a bain marie and mix every once in a while. Remove it from the heat once all the sugar has dissolved.
Whip on high speed until the meringue comes to room temperature
Add the port wine and mix.
Put in a pastry bag and top the base with it. You can achieve the same texture as me by sticking the back of a spoon to the meringue and pulling up.
Garnish with powdered cinnamon.