Prepare the Bananas: Start by peeling the bananas and cutting them lengthwise into halves, then slice each half into quarters to form 8 pieces. Arrange on a parchment-lined baking sheet.

Spread the Peanut Butter: Generously spread peanut butter over each banana slice, using about 1 tablespoon per slice.

Add the Crunch: Sprinkle chopped peanuts evenly over each peanut butter-covered banana slice and add a pinch of sea salt.

Melt the Chocolate: In a microwave-safe bowl, combine dark chocolate and coconut oil, heating in 30-second intervals until melted and smooth.

Drizzle the Chocolate: Drizzle the melted chocolate generously over the banana slices, covering each well.

Freeze the Bars: Place the baking sheet in the freezer and chill for at least 1 hour until the chocolate hardens.

Store and Serve: Transfer bars to an airtight container layered with parchment paper, storing in the freezer for up to two months.