Make a crust first. Add all the ingredients to a blender and blend until sticky dough is formed. Press it in a cake tray and set it aside.
Make the blueberry layer: add all the ingredients to a blender and blend until smooth. Pour over the crust and set it aside.
Make the raspberry layer: add all the ingredients to a blender and blend until smooth. Pour over the blueberry layer and place it in a freezer for 1 hour to firm up.
After 1 hour, melt chocolate in a waterproof bowl over the bowl with boiling water. Drizzle it on the top of the slices and let it cool down.
Enjoy!