For the ginger ice cream with rum, first prepare the ice cream. To do this, mix the egg yolks with the sugar, with the milk and the boiling whipped cream.
Heat the cream – but do not boil (the heat must not exceed 75- 78° Celsius, otherwise it could curdle). Whisk until the mixture has a very creamy consistency.
Remove cream from heat, add grated ginger and a tablespoon of rum, let cool and pour into ice cream maker, start according to instructions.
Soak the raisins in lukewarm water.
For the syrup, melt a tablespoon of butter with 2 tablespoons of sugar in a pan and let it caramelize. Sprinkle in the soaked raisins and flambé with 2-3 tablespoons of rum. Dilute with water and let cool. Fill the ice cream into sundaes and pour the syrup over it.
Decorate the ginger ice cream with rum with cookies.