01 - Line a baking sheet with parchment paper.
02 - Peel the bananas and cut into ½ inch thick rounds. Arrange slices evenly on the prepared baking sheet.
03 - Place the banana rounds in the freezer for 30 minutes until firm.
04 - In a heatproof bowl, melt the dark chocolate with coconut oil (if using) over a simmering water bath, stirring until smooth. Remove from heat.
05 - Using a fork, coat each frozen banana slice fully with the melted chocolate, allowing excess to drip off. Return coated slices to the parchment-lined sheet.
06 - Immediately sprinkle chopped peanuts over each coated banana before the chocolate sets.
07 - Continue dipping and topping remaining banana slices in the same manner.
08 - Freeze all prepared pieces for at least 30 minutes or until the chocolate is fully set.
09 - Transfer bites to an airtight container and keep frozen until ready to serve.