Stir egg yolks with sugar, 2 tbsp rum, cornmeal and milk in a saucepan. Pour in the cinnamon stick and bring to a gentle boil, stirring constantly until you can trace with a spoon to the bottom of the pot in the thick porridge. Remove from heat and stir in the rum.
Mash a few berries. Crushed strawberries (optinal other berries, chopped fruit or drained compote) in a bowl form, the corn porridge over it form and smooth. Cool, turn out and decorate with the remaining fruit.