Tear the dates in half and add them to the food processor with the walnuts, oats, flax/chia, cacao powder and maple syrup. Drizzle 1 tablespoon of plant milk on top.
Process the mixture for a few minutes, pulsing every now and then, until all the ingredients form a cookie-dough-like texture. If your mixture ever needs a bit of help, add the additional 1 tablespoon of plant milk.
When you have a dark chocolate brown mixture, move it to a bowl and let it chill in the fridge for 5-10 minutes.
Then use a damp hand to roll the dough into 12 equal-sized balls. Shave some dark chocolate on top and eat!
You can either store these in the fridge for up to 2 weeks or in the freezer for up to 5-6 months.