Separate the egg. Beat egg white until very stiff. Take 6 tablespoons of 500 ml water, mix with the refreshment food powder and egg yolk. Bring the rest of the water and 100 g sugar to the boil. Remove from the heat and add the cream powder while stirring.
Fold in the beaten egg white. Bring to the boil again and whisk with the whisk of the hand mixer for about 5 minutes until foamy. Let the food cool down a little. Chop the chocolate and fold into the food.
Divide into four dessert glasses and leave to set in the refrigerator for about 2 hours. Sort the raspberries and rinse in cold water. Mix raspberries, vanilla sugar, 2 tablespoons of sugar and grappa and marinate for about 30 minutes.
Place pickled raspberries on the lemon cream and serve.