In a food processor fitted with the “S” blade, process the nuts until they are flour like consistency. Do not over process or you will have nut butter.
Add cacao powder and process again briefly. Add dates, a few at a time, until the mixture clumps together.
Stop the machine and if you can easily roll a ball from the mixture and it sticks together you don’t need to add anymore dates. Then add vanilla and process one more time, briefly.
Press the crust into a pie plate, torte pan or Springform Pan. It’s great just topped with cut up fresh fruits of any kind. You can even roll the mixture into balls and you have healthy cookies. Play around with adding different spices (like cinnamon or nutmeg), different extracts (like vanilla or almond) and the zest and juice of lemons, limes or oranges.