Separate the egg. Stir egg yolk and 2 tbsp. milk until smooth. Boil up the rest of the milk, 50 g sugar, lemon peel and vanilla sugar. Remove from heat. Remove the lemon peel and sprinkle in semolina while stirring. Bring to the boil again and let it swell for 4-5 minutes
Beat egg whites until stiff. First stir the egg yolk into the semolina and then fold in the beaten egg white. Rinse small pudding moulds (approx. 150 ml content) with cold water. Pour in the flummery and chill for approx. 2 hours
Wash the strawberries, dab dry and, except for 4 pieces, clean them. Cut the strawberries into pieces. Finely puree with 1 tbsp. sugar and lemon juice. Peel and slice the kiwis
Flummery on plates. Spread strawberry sauce around it. Serve with remaining strawberries and kiwis. Decorate with lemon balm if you like.