Soak the dates in hot water for 5-10 minutes, or until soft and plump. Drain.
Add the dates and coconut oil to a food processor or high speed blender. Process until a smooth paste is formed, about 30 seconds (scrape down the sides as needed.) Add the peanut butter, cocoa powder, vanilla, flax meal, and chia seeds. Process until smooth – it should resemble a thick brownie batter. Transfer the paste to a mixing bowl; stir in the brown rice cereal.
Roll the mixture into tablespoon-sized balls. Dust with cocoa powder if desired.