You are going to want to use dates that are still squishy and fresh. (They are still dried, but not super old. Fresh dates are yellow and I have no idea if you can even eat them. These are brown shriveled dried but not hard dates…) If you use older dates that have started to dry out a bit (they might have a slight white residue on the outside from the sugar crystallizing on the outside if they are old too), then you might need to add 1-2 tablespoons of water when blending to help the ingredients come together. Be sure to remove the date pits too. They are hard as rocks.
If you blend it too long you are going to start making nut butter. So if the ingredients are chopped into super small pieces but the dough isn’t coming together, try adding a tablespoon or two of water to encourage everything to come together.