Yolks are broken down with 2 cups sugar. Gradually add 8 tbsp flour and 2 cups hot water. Mix everything on low heated stove, until thickened. Add the juice and grated rind of 1 lemon and leave to cool. Biscuits soaked in milk and arranged in shape. Top spread the lemon cream. Whip with 6 tbsp sugar to thicken, spread on top of cake and grated chocolate. Serve chilled.