First, you'll need to make some date paste. Take about 10 pitted Medjool dates (7 oz) and put them in a 2 cup glass measure or a saucepan if you prefer. Pour 1/2 cup boiling water over the dates and press them down so they are fully submerged in water. Let dates sit for about 20 minutes. They should absorb most of the water and you should not need to drain (though you can if you want thicker paste). Add soaked dates to food processor and process into a somewhat lumpy paste. You should have 1 cup (which should weigh about 10 oz) of paste. Pulse in food processor to make a paste. You'll only use half for this recipe.
Preheat the oven to 350 degrees F. Line a large baking sheet with parchment paper.
In a mixing bowl, beat together 1/2 cup of date paste, coconut oil and vanilla. If you still have your food processor out from making date paste, you can process the ingredients instead.
In a medium bowl, whisk together the almond flour, baking soda, salt, cocoa powder and arrowroot (or cornstarch)
Add the dry mixture to the date mixture and stir to make a dough. Stir or knead in the chocolate chips.
Cover and chill for about half an hour.
Spoon dough by even tablespoons and shape into balls. Press to 1/4 inch thick. Bake 7 to 9 minutes. Let cool.