Combine graham cracker crumbs, sugar and butter: press firmly into springform pan, chill.
Beat egg yolks and milk, sprinkle in gelatin and shisk. Stir constatny over low heat until gelatin dissolves and mixture thickens, about 5-10 minutes.
Add coffee and chocolate chips, continue stirring over lowheat until mealted adn smooth. Remove from heat.
Beat cream cheese and sugar until light and fluffy, gradually beat in gelatin mixture, raisins adn rum.
Chill until mixture mounds slightly when dropped froma spoon.
Beat egg whites utnil stiff, but not dry: fold into gelatin mixture. POur into springform pan, chill until set, about 2-3 hours. When set, decorate with choclater curls and sprinkle with icing sugar if desired.