Prepare the bananas by peeling and cutting them in half lengthwise; then slice each half into two pieces, creating eight slices. Place on a parchment-lined baking sheet without touching.

Spread a generous amount of peanut butter over each banana slice, sprinkle with sea salt and chopped peanuts.

Melt dark chocolate and coconut oil together in a microwave-safe bowl in 30-second intervals, stirring each time until smooth.

Drizzle the melted chocolate over the banana slices and allow to set.

Freeze for at least 1 hour until the chocolate hardens completely.

Store in an airtight container in the freezer for up to 2 months.