Clean the fruits and set them aside for decoration. Beat the yogurt, cottage cheese and cream cheese together. Add the sugar and 2 drops of rum flavoring.
Beat into a homogeneous mixture, you can use a blender or a food processor. At the bottom of dessert glasses, sprinkle on a thin layer of crushed plain biscuits and distribute the cream on top.
Decorate with strawberries and place in the refrigerator for 2 hours before serving.