Banana and biscuit cake: the delicious dessert without oven

Ingredients:
2 bananas
25 g of gelatine + 100 ml of water or milk
100 g of vanilla biscuits
100 g of chocolate biscuits
300 g of Greek yogurt
300 g of condensed milk
Cocoa to taste
Directions:

1. Cut the bananas and dissolve the gelatin in water, leave for 7-10 minutes.
2. Crumble the biscuits and place them in the mold, then add the bananas.
3. Mix the yogurt with the condensed milk and gelatin.
4. Pour the mixture into the mold and leave in the fridge for 1-2 hours.
5. Then dust the surface with cocoa before serving.