Pulse dates in a food processor or blender until they are in small pieces or it forms a ball.
Add oats, chocolate, chia seeds and peanut butter and pulse or mix until combined. You want there to be consistently small pieces but not overly processed.
Carefully roll into 1-inch balls (29-30 grams per ball), using the warmth of your hands to mold them together. Should yield 14-15 balls.
To set, pop in fridge or freezer for 15 minutes. Otherwise, eat as is! Will keep fresh in an air-tight bag or container for up to a week. Freeze for longer term storage.