Put all ingredients except for the chocolate drops in a powerful blender and mix finely.
To test whether there is some more liquid required, squeeze some of the mass between two fingers. If it sticks together, it's perfect. If not, add a little more (really only a few drops) of water and mix again briefly to stir.
Then add the chocolate drops and briefly “pulse” again just to stir in the drops.
Then shape balls out of the dough and refrigerate. Depending on the size you prefer you will get about 20 balls.
Notes
If there are too many (they easily last 4 days in the refrigerator), the balls can also be frozen perfectly.