Separate eggs. Whip egg yolks, 4 tbsp. sugar and vanilla sugar until thick and creamy. Beat egg white until stiff, pour in 4 tbsp. sugar. Whip cream until stiff. First fold in the beaten egg white, then the cream. Cover and freeze for at least 4 hours
Drain the plums and collect the juice. Bring juice, 2 tablespoons of sugar and lemon zest to the boil. Stir 3 tbsp. water and starch until smooth. Bind juice with it and simmer for another 3 minutes. Fold in plums. Let cool off
Roast the almonds without fat until golden brown. Let them cool down. Divide plums and almonds into 6-8 glasses. Form 6-8 balls from the ice and put them on top
You can make the ice cream in larger portions and freeze it well packed for 2-3 weeks. If you cover the surface with transparent film, it will not dry out and take on foreign smells - this also applies to ice cream you buy