In a food processor, process dates and peanuts until they begin to form a paste.
Add in peanut butter and continue to process until a dough begins to form.
Add in chocolate chips and pulse a few times to combine.
Line a loaf pan with parchment paper or plastic wrap and spoon in date mixture. Press into rectangle, about 3/4 of an inch thick. Refrigerate 1-2 hours until firm. Picking up parchment liner, remove from loaf pan and cut into individual bars. Wrap individually and store in refrigerator. They are good for about a week.
If using raisins, soak them in hot water for 5 to 10 minutes to rehydrate them, drain water, and use in recipe.