Prepare the banana sandwiches

• Slice the bananas into rounds.
• Spread peanut butter on half of the banana slices and top with the remaining slices to form sandwiches.

Freeze the snacks

• Place the banana sandwiches on a tray lined with baking paper.
• Freeze until firm so the chocolate sets quickly.

Melt the chocolate

• Melt the dark chocolate with the coconut oil in a bowl over a saucepan of simmering water.
• Stir until smooth.

Coat and set

• Dip each frozen banana sandwich into the melted chocolate until fully coated.
• Return to the tray and chill until the chocolate is set.