Mix gelatin with ¼ cup water in a bowl and set aside till it dissolves.
Put hung yogurt in a bowl and whisk well. Add vanilla ice cream and whisk again.
Place a pancake in a cake tin, spread 1 tbsp strawberry jam over it and place another pancake over it. Similarly make two more pancake sandwiches and keep them separately.
Add gelatin to the yogurt mixture and mix well. Add 2 tbsps strawberry jam and mix well.
Pour some yogurt mixture over the pancake sandwich in the tin and spread evenly. Over that keep another pancake sandwich. Spread some more yogurt mixture over this. Place the third pancake sandwich and spread the remaining yogurt mixture over this. In the end place the last pancake.
Keep the tin in the refrigerator to set.
Remove from the cake tin, cut into wedges, place on a serving plate, dredge with icing sugar and serve chilled.