In a bowl, mix plain yogurt and sugar together.
Add whipping cream and gently combine until smooth.
Soak gelatin in cold water, then melt it in the microwave.
Add the melted gelatin to the yogurt mixture and mix well.
Place biscuits on the bottom of a cake mold and pour the yogurt batter over them.
Chill in the refrigerator for at least 3 hours until set.
Decorate with your preferred fruits or jam.