Chocolate Banana Cake

Bloom the gelatin in water, stir, and let it sit to swell.

Process the cookies into crumbs using a blender or a bag and a rolling pin.

Melt the butter, add it to the cookie crumbs, and mix everything well.

Transfer the mixture into a springform pan and press the crust down firmly with a spoon.

Place the crust in the freezer for 10 minutes.

Pour the milk into a saucepan, add the sugar, place over heat, and warm until the sugar dissolves.

Add the cocoa powder and the bloomed gelatin, whisking until smooth.

Remove from heat and add the sour cream, whisking until you get a smooth cream.

Peel the bananas and cut each one into 4 pieces.