Throw everything in a food processor and blitz until finely crumbled. When you pinch some between your fingers, it should stick together.
Refrigerate for a couple of hours to firm up.
Ingredients do of course vary – some dates are really juicy; others are quite dry… so required quantities can also vary slightly. If your mix doesn’t hold together add a little more dried fruit or a tiny drizzle of coconut oil. If it seems too sticky, add a few more nuts.