Remove the butter from the refrigerator in advance. Pour gelatin with water and leave for 15 minutes at room temperature. Crush the cookies (to make the process cleaner, place the cookies in a bag and crush them with a rolling pin). Prepare the cake pan.
Mix cookies with softened butter. Place the resulting mass in the mold and, distributing and compacting it, form a base with sides. Place the base in the refrigerator.
Add sugar to the water with gelatin and heat until it dissolves over low heat.
Place the yogurt in a deep bowl and add gelatin to it through a sieve, mix well.
Remove the pan with the base from the refrigerator, place the berries on it, pour over the yogurt mixture and place in the refrigerator for 120 minutes.
Cut the finished dessert into portions and serve.